Relation of structure of an enzyme to its reaction specificity :The reaction specificity relates to unique shape of active site to which only a complementary shape can bind.
How does the structure of an enzyme determines enzyme's specificity?The relationship between enzyme structure and enzyme specificity is that an enzyme's form, which is a result of its amino acid sequence, determines how specific it is.
An enzyme's three-dimensional structure, which is essential to its normal operation, determines how specific it is. The lock-and-key theory of enzyme activity states that the three-dimensional structure of an enzyme's active site enables the enzyme to bind readily to just certain substrates.
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Suppose that a certain fortunate person has a net worth of $77.0 billion ($ 7.70×1010 ). If her stock has a good year and gains $3.20 billion ( 3.20×109 ) in value, what is her new net worth?
Express your answer to three digits.
her new network is $80.20 billion
The active ingredient in one does of antacid A is 0.50g Al(OH)3. the active ingredient in one does of antacid B is 0.50g CaCO3. Would one does of antacid A or B neutralize more stomach acid? Explain your choice, and show a calculation to support your answer.
One dose of antiacid A will neutralize more stomach acid (0.019 mol) than one dose of antacid B (0.01 mol).
Stoichiometric problemStomach acid is HCl. The reaction of HCl with each of the active ingredients of the antiacids is expressed in the following equations:
[tex]3HCl + Al(OH)_3 --- > AlCl_3 + 3H_2O[/tex].......................Eqn 1
[tex]2HCl +CaCO_3 --- > CaCl_2 + H_2O + CO_2[/tex]...................Eqn 2
In equation 1, the mole ratio of stomach acid to [tex]Al(OH)_3[/tex] is 3:1.
Mole of 0.50 g [tex]Al(OH)_3[/tex] = 0.5/78 = 0.0064 mol
The equivalent amount of stomach acid to be neutralized = 0.0064 x 3 = 0.0192 mol
In equation 2, the mole ratio of stomach acid to [tex]CaCO_3[/tex] is 2:1.
Mole of 0.50 g [tex]CaCO_3[/tex] = 0.5/100 = 0.005
The equivalent amount of stomach acid to be neutralized = 0.005 x 2 = 0.01 mol.
Thus, one dose of antiacid A will neutralize more stomach acid (0.019 mol) than one dose of antacid B (0.01 mol).
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Please, help me with this question !! Thank you so much.
Translation in the picture:
Among the 6 electronic structures, there is only one that is correct, in 5 that remain, each one has one fault, then directly to the figure, make a round around each fault (I've circled it, but I don't know how to explain it simply most), and give a simple explanation of what is the fault. (Answer in English)
Answer:
Explanation:
In this figure, the six electronic structures represent the electron configurations of six different elements: Li, Be, B, C, N, and O. The correct electron configurations are shown in green, and the incorrect ones are shown in red.
In the electron configuration for Li (top left), the fault is that the 2s orbital is not completely filled. The correct electron configuration for Li should have two electrons in the 1s orbital and one electron in the 2s orbital.
In the electron configuration for Be (top center), the fault is that the 2s orbital is not completely filled. The correct electron configuration for Be should have two electrons in the 1s orbital and two electrons in the 2s orbital.
In the electron configuration for B (top right), the fault is that the 2s orbital is not completely filled. The correct electron configuration for B should have two electrons in the 1s orbital, two electrons in the 2s orbital, and three electrons in the 2p orbital.
In the electron configuration for C (bottom left), the fault is that the 2p orbital is not completely filled. The correct electron configuration for C should have two electrons in the 1s orbital, two electrons in the 2s orbital, and four electrons in the 2p orbital.
In the electron configuration for N (bottom center), the fault is that the 2p orbital is not completely filled. The correct electron configuration for N should have two electrons in the 1s orbital, two electrons in the 2s orbital, and five electrons in the 2p orbital.
In the electron configuration for O (bottom right), the fault is that the 2p orbital is not completely filled. The correct electron configuration for O should have two electrons in the 1s orbital, two electrons in the 2s orbital, and six electrons in the 2p orbital.
I hope this helps! Let me know if you have any questions or need further clarification.
How can you reduce the amount of waste you send to landfills?
Answer:
for reducing your landfill contribution
Reduce and reuse: The most obvious and easiest way to reduce your landfill contribution is by reducing and reusing as much as possible. ...
1,Recycle: ...
2,Compost: ...
3,Electric or gas dryer: ...
4,Drive less: ...
5,Reusable water bottle: ...
6,Plant a tree: ...
7,Recycle electronics
There are several ways you can reduce the amount of waste you send to landfills:
Reduce your consumption: One of the most effective ways to reduce waste is to simply consume less. This can involve reducing your use of single-use plastics, choosing products with minimal packaging, and opting for products that are made to be reused or recycled.
Recycle: Recycling is a process that converts waste materials into new products. By recycling, you can help to conserve natural resources and reduce the amount of waste that goes to landfills.
Compost: Composting is the process of breaking down organic material, such as food waste and yard trimmings, into a soil-like substance called compost. This can be used to enrich the soil and help plants grow.
Donate or sell gently used items: Rather than throwing away gently used items, consider donating them to a thrift store or selling them online. This can help to extend the life of these items and reduce the amount of waste that ends up in landfills.
Reuse: Look for ways to reuse items rather than throw them away. For example, you can use a reusable water bottle instead of disposable plastic bottles, or bring a reusable bag to the grocery store instead of using plastic bags.
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Calculate the specific heat capacity of a metal if a 17.0 g sample requires 481 J to change the temperature from 25°C to 67°C
Answer:
The specific heat capacity of the metal is 0.529 J/g · C.
Explanation:
To calculate the specific heat capacity of a metal, you can use the following formula:
c = Q / (m * ΔT)
Where c is the specific heat capacity of the metal, Q is the amount of heat required to change the temperature of the metal, m is the mass of the metal sample, and ΔT is the change in temperature.
In your case, the amount of heat required to change the temperature of the metal is 481 J, the mass of the metal sample is 17.0 g, and the change in temperature is 67°C - 25°C = 42°C. Plugging these values into the formula, we get:
c = 481 J / (17.0 g * 42°C) = 0.529 J/g · C
Therefore, the specific heat capacity of the metal is 0.529 J/g · C.
The specific heat capacity can be calculated using the calorimetric equation. The specific heat capacity of the metal is calculated to be 0.67 J/ °C g.
What is specific heat capacity?The specific heat capacity of a substance is the heat energy required to rise its temperature by one degree celsius per one gram of the substance. It is an intensive property.
The calorimetric equation connecting the heat energy q to mass m, temperature difference ΔT and specific heat c is given below:
q = m c ΔT
Given mass = 17 g
heat energy q = 481 J
temperature difference = 67 - 25 = 42° C
Then c = 481 / (17 g × 42° C ) = 0.67 J/ °C g.
Therefore, the specific heat of the metal is 0.67 J/ °C g.
.
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What would the answer be?
Goal: Atoms are composed of electrons, protons, and neutrons. It is the difference in the numbers of protons in the atoms that determine the different elements. You can determine the composition of an atom of any element from its atomic number and its mass number.
The given statement is correct. What atom we are looking at is determined by the number of protons.
How would you calculate an atom's or element's proton count?The atomic number of an element is equal to the number of protons in an atom. Use oxygen as an example. The periodic table states that oxygen has an atomic number of eight. The element's symbol is placed above the atomic number.
How can the abundance of protons within an atom be determined? How can the abundance of neutrons in such an atom be determined?A neutral atom has the same number of protons and electrons as protons. The total of the protons and neutrons with in atom's nucleus determines its mass, which is denoted by the letter M. The number of neutrons is equivalent to the discrepancy between the atomic number and the mass number of the atom (M) (Z).
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Given a mass of 14 g and a volume of 28 ml, calculate the density. g/ml (note: insert the numerical answer in standard form with the correct number of significant figures.)
Given a mass of 14 g and a volume of 28 ml, the density in g/ml is
0.5 grams per cubic centimeter.
What is density in g/ml?
Density is the mass of a substance in relation to its volume. Despite the fact that the Latin letter ρ can also be used, the symbol for density that is utilized the most frequently is. The size of how tightly a cloth is packed together is called density. it's far characterized as the mass predictable with unit amount.
ρ = m/V, where m denotes the item's mass, V denotes its quantity, and m denotes its density.
According to the given question:
A material substance's density is defined as its mass per unit volume. D is density, M is mass, and V is volume, therefore the formula for density is d = M/V.
d = M/V :
- 14/28= 1/2 = 0.5 grams per cubic centimeter.
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ased on the data above, what can be concluded regarding the strength of the C-H, N-H, and O-H bonds in the molecules shown? (A) The C-H bond is the strongest. (B) The N-H bond is the strongest. (C) The O-H bond is the strongest. (D) Nothing can be concluded without knowing the strength of the H-CI bond.
The O-H bond is the strongest due to high electronegativity difference.
Bond energy, also known as mean bond enthalpy or average bond enthalpy in chemistry, is a measure of bond strength in a chemical bond. Bond energy is defined by the International Union of Pure and Applied Chemistry as the average value of the gas-phase bond-dissociation energy for all bonds of the same type within the same chemical species. The greater the difference in electronegativity, the greater the bond polarity and thus bond strength.
As the difference in the electronegativities of the bonded atoms grows, so does the bond dissociation energy. The electronegativity of the atoms in a compound influences the ionic bonds. More electronegative elements have a higher proclivity to form ionic character bonds with other elements.
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Explain how the ionic bond is formed in Lithium Fluoride.
( I underlined the important part the rest is extra info that can help you understand)
Answer
Lithium is a metal (Alkali metal) it will donate one of its electrons to fluoride so then it becomes positively charged (cation).
(atoms are neutral because protons (p+) and electrons (e-) are equal taking one electron from an atom will make it positive)
Flouride is a nonmetal so it will accept the electron from lithium so then it becomes negatively charged (anion)
lithium is in group 1 so its charge is +1
Flouride is in group 17 so its charge is -1
both cancel each other so there are no subscripts
which of these electron configurations are valid: i. 1s2 2s2 2p6 3s2 3p6 4s2 3d5 ii. 1s2 2s2 2p6 3s1 3p6
The valid electronic configuration among the following is 1s2 2s2 2p6 3s2 3p6 4s2 3d5.
The electronic configuration of shell of an atom is based on certain rules of atomic stability and chemical nature. In the Aufbau principle, the orbitals are filled in accordance with the atoms' increasing energies in their ground state. In Pauli's principle, there can never be two identical sets of four quantum numbers for an atom's electrons. In Hund's rule, Prior to each orbital in that subshell having one electron each, the electrons in the orbitals that belong to the same subshell (p, d, or f) pair. These rules must be followed while filling electrons in an orbital.
Hence, electron are filled in sub-shell in designated order.
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An organic compound (CaHbNcOdCle) was synthesized and a sample of it was analyzed and found to contain only C, H, N, O, and Cl. It was observed that when a 0.150-g sample of the compound was burned, it produced 0.138 g CO2 and 0.0566 g H2O. All the nitrogen in a different 0.200-g sample of the compound was converted to NH3, which found to weigh 0.0238 g. Finally, the chlorine in a 0.125-g sample of the compound was converted to Cl- and by reacting it with AgNO3, all the chlorine was recovered as AgCl. The AgCl, when dried, was found to weigh 0.251 g. Calculate
the weight percent of each element in the compound.
The weight percent of each element in the compound. is given below.
The mass percent of C = 24%
The mass percent of H = 4%
The mass percent of Cl = 50%
The mass percent of N = 9.8%
The Mass percent of oxygen = 12.2%
The weight percent of the element in the compound?The following formula is used to calculate the mass of each component element in a sample of the compound:
The weight of C:
In 1 mole of CO2, there is 1 mole of carbon.
In 0.138 g of CO2, there will be:
0.138 g / 44 g * 12 g = 0.0368 g
H's mass:
1 mole of H2O contains 2 moles of hydrogen.
0.0566 g of H2O will contain the following quantity of H:
0.0566 g / 18 * 2 * 1 = 0.00628 g
volume of Cl;
In 1 mole of AgCl, there is 1 mole of Cl.
In 0.251 g of AgCl, the mass of Cl will be:
0.251 g / 143.5 g * 35.5 g = 0.0621 g
N's mass:
In 1 mole of NH3, there is 1 mole of N.
In 0.251 g of NH3, the mass of N will be:
0.0238g / 17.0 g * 14 g = 0.0196 g
Each element's mass percentage will be:
Mass proportion of C:
mass percent is equal to 0.0368/0.15 * 100.
24% mass percent
Mass proportion of H:
mass percent is equal to 0.00628/0.15 * 100%.
4% mass percent
Cl mass percentage;
Mass proportion of Cl:
mass percent is equal to 0.0621/0.125 * 100%.
50% mass percentage
N mass percentage:
Mass percent is equal to 0.0196/0.2*100%.
9.8% mass percent
Oxygen mass percentage equals 100 minus (24 + 4 + 50 + 9.8)
oxygen mass percentage: 12.2%
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Which of these energies are most suited for study of the NaCl crystal structure? (Select all that apply.)
20.0eV
200eV
2.00keV
20.0keV
0.200MeV
2.00MeV
None of these
The NaCl crystalline nature can be studied best at energies between 20.0 and 200 eV.
What is an example of a structure?Examples of huge pile structures include bridges, anthills, skeletons, buildings, airplanes, beaver dams, and salt domes. The infrastructure of a human civilization is composed of the outcomes of construction, which are classified as buildings and non-building structures.
What class of words are structures?Structure is a noun or a verb, as was said before. I'm working on better time management so I won't be running behind schedule. I set up the agreement to keep our potential losses to a minimum. Use of the noun: The birds had created an impressive building out of sticks and other abandoned materials.
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Three blocks of equal volume are completely submerged into water. The blocks made of different materials: aluminum, iron and lead. Which of the following is the correct statement about the buoyant force on each block? (Paluminum = 2700 kg/m', Pion = 7800 kg/m, Plead = 11300 - kg/m) (A) Faluminum > Fire > Fland (B) Faluminum < Firon Flead (D) Faluminum = Fire = Fiend (E) Faluminum > Fire
The first the principal quantum number consider what property of an electrons?
a) direction of spin
b) orientation in space
c) distance from the nucleus
Answer:
Orientation in space.
Explanation:
I had a similar question.
An organic compound (CaHbNcOdCle) was synthesized and a sample of it was analyzed and found to contain only C, H, N, O, and Cl. It was observed that when a 0.150-g sample of the compound was burned, it produced 0.138 g CO2 and 0.0566 g H2O. All the nitrogen in a different 0.200-g sample of the compound was converted to NH3, which found to weigh 0.0238 g. Finally, the chlorine in a 0.125-g sample of the compound was converted to Cl- and by reacting it with AgNO3, all the chlorine was recovered as AgCl. The AgCl, when dried, was found to weigh 0.251 g. Calculate the weight percent of each element in the compound.
The mass percent of each element is:
mass percent of C is 24%
mass percent of H is 4%
mass percent of Cl is 50%
mass percent of N is 9.8%
Mass percent of oxygen is 12.2%
What is the mass of each of the constituent elements in a sample of the compound?The mass of each of the constituent elements in a sample of the compound is determined as follows:
mass of C:
1 mole of C is present in 1 mole of CO₂
The mass of C in 0.138 g of CO₂ will be:
0.138 g / 44 g * 12 g = 0.0368 g
mass of H:
2 moles of H are present in 1 mole of H₂O
The mass of H present in 0.0566 g H₂O will be:
0.0566 g / 18 * 2 * 1 = 0.00628 g
mass of Cl;
1 mole of Cl is present in 1 mole of AgCl
The mass of Cl in 0.251 g of AgCl will be:
0.251 g / 143.5 g * 35.5 g = 0.0621 g
mass of N:
1 mole of N is present in 1 mole of NH₃
The mass of N in 0.251 g of NH₃ will be:
0.0238g / 17.0 g * 14 g = 0.0196 g
Mass percent of each element will be:
mass percent of C:
mass percent = 0.0368/0.15 * 100
mass percent = 24%
mass percent of H:
mass percent = 0.00628 / 0.15 * 100%
mass percent = 4%
mass percent of Cl;
mass percent of Cl:
mass percent = 0.0621 / 0.125 * 100%
mass percent = 50%
mass percent of N:
mass percent = 0.0196 / 0.2 * 100%
mass percent = 9.8%
Mass percent of oxygen = 100 - (24 + 4 + 50 + 9.8)
Mass percent of oxygen = 12.2%
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The corrosion (rusting) of iron is represented as follows: 3 O2 (g) + 4 Fe (s) —> 2 Fe,O3 (s).
What volume (in liters) of Oxygen gas would be required to produce 32.0 g of Fe2O3?
Answer:
0.068 liters of Oxygen gas would be required to produce 32.0 g of Fe2O3.Explanation:
To calculate the volume of Oxygen gas that would be required to produce a given amount of Fe2O3, we need to use the balanced chemical equation for the corrosion (rusting) of iron. The equation is:
3 O2 (g) + 4 Fe (s) —> 2 Fe,O3 (s)
This equation tells us that for every 3 molecules of Oxygen gas that react with 4 molecules of Iron, 2 molecules of Iron (III) oxide (Fe2O3) are produced. Since the atomic weight of Oxygen is 16.0 g/mol and the atomic weight of Iron is 56.0 g/mol, the molar ratio of Oxygen to Iron in the equation is 3/16 = 0.1875.
We can use this molar ratio to calculate the volume of Oxygen gas that would be required to produce a given amount of Fe2O3. To do this, we first need to convert the mass of Fe2O3 to moles. Since the atomic weight of Fe2O3 is 159.7 g/mol, 32.0 g of Fe2O3 is equivalent to 32.0 / 159.7 = 0.201 moles of Fe2O3.
We can then use the molar ratio of Oxygen to Iron to calculate the number of moles of Oxygen gas that would be required to produce 0.201 moles of Fe2O3. Since the molar ratio of Oxygen to Iron is 0.1875, 0.201 moles of Fe2O3 would require 0.201 * 0.1875 = 0.0376 moles of Oxygen gas.
Finally, we can use the molar volume of a gas at standard temperature and pressure (STP) to convert the number of moles of Oxygen gas to volume. At STP, one mole of a gas occupies a volume of 22.4 liters, so 0.0376 moles of Oxygen gas would occupy a volume of 0.0376 * 22.4 = 0
Geh lang
What is a stem cell?
Consider a metal ion with the outer electron configuration of d4. In a coordination complex, the number of unpaired electrons in that metal ion depends on the orientation and type of ligands that surround it. Classify each description of a complex by the number of unpaired electrons in the d4 metal ion. Hint: read pages 1061 and 1062 in the 8th edition Silberberg book. 1. square planar strong field [Select] 2. octahedral weak field [Select] < 3. tetrahedral strong field [Select] 4. octahedral strong field [Select] 5. tetrahedral weak field [Select ] 6. square planar weak field [Select]
complexes can be classified based on number of unpaired electron as follows square planar strong field: 2 unpaired electrons, octahedral weak field: 4 unpaired electrons, tetrahedral strong field: 2 unpaired electrons, octahedral strong field: 0 unpaired electrons, tetrahedral weak field: 4 unpaired electrons, square planar weak field: 4 unpaired electrons.
In a coordination complex, the number of unpaired electrons in the metal ion depends on the strength of the ligand field and the orientation of the ligands. Strong field ligands have a higher affinity for the d orbitals and can more effectively stabilize them, leading to a lower number of unpaired electrons in the metal ion.
Weak field ligands have a lower affinity for the d orbitals and do not stabilize them as effectively, leading to a higher number of unpaired electrons in the metal ion. The number of unpaired electrons also depends on the orientation of the ligands, with an octahedron (6 ligands) and a tetrahedron (4 ligands) leading to different numbers of unpaired electrons.
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The above graph shows the journey of squirrel for a certain interval. Which of the following describes the motion of the squirrel between 5 s and 8 s?
The statement that describes the motion of the squirrel between 5s and 8s is as follows: The squirrel's speed did not change (option C).
What is a graph?A graph in mathematics and statistics is a data chart (graphical representation of data) intended to illustrate the relationship between a set (or sets) of numbers (quantities, measurements or indicative numbers) and a reference set, whose elements are indexed to those of the former set(s) and may or may not be numbers.
According to this question, a graph is used to illustrate the relationship between the distance moved by a squirrel and the time it took it to move i.e. the journey of squirrel for a certain interval or period of time.
Based on the graph above, the speed increased with time up until 5 seconds, however, from 5seconds till 8 seconds, the speed of the squirrel remained constant i.e. did not change until it picked up again.
Therefore, option C is the correct description of the situation of the squirrel between 5s to 8s.
The options to the incomplete question are as follows:
A. The squirrel's speed increased
B. The squirrel's speed decreased
C. The squirrel's speed did not change
D. The squirrel moved backward
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Complete and balance the given precipitation reactions, including the physical states of the products as predicted by the solubility rules.
Ba(NO3)2 (aq)+ CuSO4(aq)-------->
K3 PO4 (aq)+ MgCl2 (aq)----------->
BaSO4 (s) + Cu(NO3)2 (aq) and KCl (s) + Mg3(PO4)2 (s) is the product of given precipitation reactions.
What is precipitation reactions ?Precipitation is the process of changing a dissolved substance from a super-saturated solution to an insoluble solid in an aqueous solution. Precipitate refers to the produced solid.The Ba2+ ions from the barium nitrate solution would react with the SO42- ions from the copper sulfate solution to form BaSO4, a white solid precipitate. The Cu2+ ions from the copper sulfate solution would react with the NO3- ions from the barium nitrate solution to form Cu(NO3)2, a blue solutionBa(NO3)2 (aq) + CuSO4 (aq) → BaSO4 (s) + Cu(NO3)2 (aq)
The K+ ions from the potassium phosphate solution would react with the Cl- ions from the magnesium chloride solution to form KCl, a white solid precipitate. At the same time, the Mg2+ ions from the magnesium chloride solution would react with the PO43- ions from the potassium phosphate solution to form Mg3(PO4)2K3 PO4 (aq) + MgCl2 (aq) → KCl (s) + Mg3(PO4)2 (s)
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Which of the following compounds would have the largest enthalpy of formation? The bond energies are given in parentheses. a. H-H (436 kJ/mol) b. H-Cl (431 kJ/mol) c. H-F (567 kJ/mol) d. H-I (299 kJ/mol) e. H-Br (366 kJ/mol)
To solve this, we must be knowing each and every concept related to bond enery and enthalpy o formation. Therefore, the correct option is option C among all the given options.
What is Enthalpy?Enthalpy term is basically used in thermodynamics to show the overall energy that a matter have. Mathematically, Enthalpy is directly proportional to specific heat capacity of a substances. Internal energy is the sum of all kinds of energy that the particles of a matter can possess, for example translational energy. Rotational energy.
Bond energy is directly proportional to the bond strength. since the bond enthalpy of H-F is the highest among all the given bond energy. H-F has the largest enthalpy of formation.
Therefore, the correct option is option C.
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In a galvanic cell, positively charged ions migrate from the salt bridge to the ______ compartment, while negatively charged ions migrate from the salt bridge to the ______ compartment.
Positively charged ions move from a salt bridge to the anode compartment in a galvanic cell, whereas negatively charged ions move from a salt bridge to a cathode compartment.
A Galvanic Cell is what?Galvanic or voltaic cells are two types of electrochemical devices that use chemical energy from spontaneous redox reactions to produce electricity. Convectional cell An electrochemical device known as a voltaic cell uses chemical reactions to produce electricity.
A galvanic cell's mechanism of operationThe electrical energy generated by the transfer of electrons during a redox reaction is used by galvanic cells to carry out practical electrical operations. Separating the oxidation / reduction half-reactions and connecting them with a wire makes it possible to collect the electron flow since the electrons must pass through the wire in order to move between the two half-reactions.
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lattice energy is associated with forming a crystalline lattice of alternating cations and anions from the blank ions. because the cations are positively charged and the anions are negatively charged, there is a blank of potential - as described by coulomb's law - when the ions come together to form a lattice. that energy is blank when the lattice forms.
In order to create a crystalline lattice of alternate cations and anions from the blank ions, lattice energy is required.
Ion charge and lattice energy: what's the connection?The lattice energy increases with increasing ion charge. The implication of this is that ions with higher charge values will result in ionic compounds with higher lattice energies. The lattice energies of the compounds that include ions with lesser charges are thus reduced.
How do ionic radii, lattice energy, and ion charge relate to one another?Ionic radii and lattice energy are inversely related. The gap between the positive and negative charges widens as ionic radii rise. As a result, the potential energy is less negative. Lattice energy thus declines.
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question:-
What is lattice energy?
FILL IN THE BLANK Collision frequency provides an upper limit on how fast a reaction can take place. The laws of probability tell us that the number of collisions depends on the _____ of the number of reactant particles, not their _____.
that the number of collisions depends on the energy, of the number of reactant particles, not their orientation.
How is energy defined?Energy is referred to by scientists as the capacity for work.People have figured out how to transform energy from one type to the other and use it to accomplish tasks, making modern civilization possible.
What function does orientation serve?boosts employee confidence and enables new hires to settle in more quickly; results in a more efficient and successful staff; increases employee retention; andencourages dialogue between the new employee and the supervisor.
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Draw the following neutral molecules and then indicate their charge and how they change when binding metal ions. Name an important protein or bioinorganic complex in which an analogue of each is found. Porphine (or porphyrin) Corrin Chlorin
1. Porphyrin[ formal charge=0, found in haemoglobin also found in cytochrome p-450.
2. Corrin [formal charge=0,found in vitaminB12]
3. Chlorin[formal charge =0,found in chlorophyll as Mg2+chlorin]
What is protein?
Proteins are substantial, intricate molecules that are essential to numerous bodily processes. They perform the majority of their work within cells and are necessary for the development, maintenance, and control of the body's tissues and organs.
For structures please refer attached file
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Cytochrome p-450 and hemoglobin both include porphyrin; Vitamin B12 contains corrin; Chlorophyll contains chlorin.
Neutral molecules: What are they?
A neutral molecule is one that has an equal number of protons and electrons, which prevents it from having a positive or negative electrical charge.
When an atom has an equal amount of protons and electrons, it also has an equal number of positive and negative electric charges . The atom is referred to as neutral since its overall electric charge is zero.
Structure in attachment
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A molecule with the formula AB2 has a linear molecular geometry. Which of the following could represent the hybridization of the central atom?
In a molecule with the formula AB2, the hybridization of the central atom is typically sp hybridization. This type of hybridization allows for the formation of two single bonds in opposite directions, which gives the molecule its linear molecular geometry.
A molecule with the formula AB2, such as carbon dioxide (CO2), is an example of a linear molecular geometry. In this type of molecule, the central atom is bonded to two other atoms, forming a straight line. The hybridization of the central atom, which is the process of mixing different types of atomic orbitals to form new hybrid orbitals, is determined by the number and types of bonds formed with the atoms around it.
In a molecule with the formula AB2, the hybridization of the central atom is typically sp hybridization. This is because there are two single bonds formed with two different atoms, which would require the combination of one s orbital and one p orbital. The s orbital is used to form the sigma bond between the central atom and the two other atoms, while the p orbital is used to form the two pi bonds.
The sp hybridization of the central atom also allows the molecule to have a linear molecular geometry. This is because the two single bonds formed by the sp hybrid orbitals are in opposite directions and create a straight line, giving the molecule its linear shape.
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How many mL of 0.500 M Nal would be required to make a 0.0410 M
solution of Nal when diluted to 275.0 mL with water?
Which of the following electron configurations represents the most chemically stable atom?
a. 1s²2s²2p³
c. 1s22s22p 3s²3p64s²3d5
d. 1s²2s²2p 3s23p6
b. 1s²2s²2p 3s²3p5
Answer:
D. 1s²2s²2p 3s²3p6
Explanation:
The most chemically stable electron configuration is typically the one that has a full valence shell, which means that the outermost electron shell is completely filled with electrons. In this case, the electron configuration with a full valence shell is 1s²2s²2p 3s²3p6. This configuration is often called the "noble gas" configuration, because it is similar to the electron configuration of a noble gas, such as neon or argon, which are extremely stable and unreactive.
electrolysis can be used to resolve hydrogenation pathways at palladium surfaces in a membrane reactor. t/f
True. Electrolysis can be used to resolve hydrogenation pathways at palladium surfaces in a membrane reactor. It uses electro catalytic palladium membrane reactor.
Palladium surface membrane reactors use electricity to hydrogenate organic molecules at ambient temperature and pressure. These reaction conditions position ePMRs as a sustainable alternative to thermochemical hydrogenation which requires high-temperature and high-pressure reaction conditions. The electro catalytic palladium membrane reactor uses electrolysis and a hydrogen-selective palladium membrane to deliver reactive hydrogen to a catalyst surface in an adjacent compartment for reaction with an organic substrate. This process forms the requisite metal-hydride surface for hydrogenation chemistry but at ambient temperature and pressure and without a H2 source.
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