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Answers by Dawn49061396
0
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28
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How does the molecular structure and properties of a ligand affect the binding affinity to a specific protein target, as determined by molecular dynamics simulations?
answered
Feb 21
in
Computational Chemistry
0
votes
27
views
What is the heat of hydration for magnesium sulfate when dissolved in water, assuming a mass of 10 grams of magnesium sulfate is dissolved in 100 mL of water?
answered
Feb 20
in
ThermoChemistry
0
votes
24
views
How do the electronic and magnetic properties of transition metal complexes vary as a function of the metal's atomic number and the ligands attached to it?
answered
Feb 20
in
Quantum Chemistry
0
votes
37
views
What is the bond enthalpy of the carbon-hydrogen bond in methane (CH4) at a room temperature of 25°C?
answered
Feb 18
in
Chemical bonding
0
votes
41
views
How does surface modification affect the stability and reactivity of metal nanoparticles in different chemical environments?
answered
Feb 17
in
Surface Chemistry
0
votes
31
views
What specific materials and factors need to be considered in designing a system for the production of hydrogen fuel to ensure maximum efficiency and sustainability?
answered
Feb 12
in
Chemical engineering
0
votes
66
views
How can chemistry students overcome limited opportunities for hands-on experimentation in order to better understand practical applications of chemical principles and theories?
answered
Feb 5
in
Chemical education
0
votes
108
views
Calculate the standard heat of formation (in kJ/mol) of water (H2O) given the following bond energies: H-H = 436 kJ/mol, O=O = 498 kJ/mol, H-O = 463 kJ/mol.
answered
Feb 3
in
Chemical bonding
0
votes
67
views
Calculate the polarization in an electrochemical cell consisting of a zinc electrode and a copper electrode. The electrode potentials of zinc and copper are -0.76 V and +0.34 V, respectively. The resistance of the electrolyte solution between the electrodes is 10 ohms, and the current flowing through the cell is 0.5 A.
answered
Feb 3
in
ElectroChemistry
0
votes
67
views
How does changing the pH affect the equilibrium constant (Kf) for the formation of Fe(CN)6 4- complex ion in a solution containing Fe3+ and CN- ions? Provide a detailed explanation of the effect of pH on the equilibrium constant for the reaction.
answered
Feb 3
in
Chemical equilibrium
0
votes
66
views
What is the mechanism of action for the metalloenzyme carbonic anhydrase? How does the coordination chemistry of the active site contribute to its catalytic activity in converting carbon dioxide to bicarbonate?
answered
Jan 31
in
Coordination Chemistry
0
votes
94
views
What is the specific concentration of the pesticide residue chlorpyrifos in a particular brand of apples and how does it compare to the Maximum Residue Limit (MRL) established by the regulatory authority? Additionally, what is the potential human health impact of consuming the apples with the measured pesticide residue concentration?
answered
Jan 31
in
Environmental Chemistry
0
votes
65
views
How can gas chromatography be used to determine the composition of a mixture containing ethanol, methanol, and propanol?
answered
Jan 29
in
Analytical Chemistry
0
votes
74
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Calculate the heat released when 300 mL of water at 20°C is mixed with 200 mL of ethanol at 25°C. The specific heat capacity of water is 4.18 J/g°C, the specific heat capacity of ethanol is 2.44 J/g°C, and the heat of mixing for water and ethanol is approximately -21 kJ/mol. Assume that both water and ethanol have a density of 1 g/mL and that the final temperature of the mixture is 22°C.
answered
Jan 23
in
ThermoChemistry
0
votes
77
views
Calculate the bond order and bond length of the nitrate ion (NO3-) in its resonance hybrid form.
answered
Jan 23
in
Inorganic Chemistry
0
votes
104
views
A 50.0 g sample of ethanol is heated from 25.0 °C to 85.0 °C, and absorbs 237 J of heat. What is the specific heat capacity of ethanol?
answered
Jan 22
in
ThermoChemistry
0
votes
130
views
Why is understanding gender identity important in studying human sexuality?
answered
Jan 17
in
Psychology
0
votes
84
views
Who proposed the cognitive-behavioural model of pain?
answered
Jan 16
in
Psychology
0
votes
82
views
What is the difference between first and second-wave CBT?
answered
Jan 16
in
Psychology
0
votes
66
views
What is narrative therapy?
answered
Jan 15
in
Psychology
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