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0
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1
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29
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How does the presence of a metal nanoparticle affect the surface-enhanced Raman spectroscopy (SERS) signal of a molecule?
asked
5 days
ago
in
Surface Chemistry
0
votes
1
answer
19
views
How do the physicochemical properties of a drug affect its pharmacokinetics in the human body?
asked
5 days
ago
in
Medicinal Chemistry
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votes
1
answer
26
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What is the effect of temperature on the rate of catalysis by the enzyme amylase, and how does the addition of an inhibitor molecule affect this rate at different temperatures?
asked
Feb 20
in
BioChemistry
0
votes
1
answer
33
views
What is the effect of molecular chirality on the absorption and emission of light by chiral molecules?
asked
Feb 13
in
PhotoChemistry
0
votes
1
answer
40
views
What is the role of surface area in heterogeneous catalysis and how does it affect the catalytic activity of the given substance?
asked
Feb 13
in
Surface Chemistry
0
votes
1
answer
43
views
How can the production process of detergents be optimized to reduce the environmental impact of the manufacturing process?
asked
Feb 10
in
Chemical engineering
0
votes
1
answer
25
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How can the polymerization reaction of acrylonitrile monomer be optimized to increase the production yield and molecular weight of polyacrylonitrile?
asked
Feb 10
in
Chemical synthesis
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1
answer
41
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Given the following electrochemical equation:Cu(s) | Cu²⁺(aq, 0.0100 M) || Cr³⁺(aq, 1.00 M) | Cr(s)At 298 K, the standard reduction potential for Cu²⁺/Cu is +0.34 V and for Cr³⁺/Cr is -0.74 V. Calculate the equilibrium constant (K) for the above electrochemical reaction.
asked
Feb 4
in
ElectroChemistry
0
votes
1
answer
54
views
Can you identify the differences in the photochemical properties of the enantiomers of a chiral molecule and explain how this affects their behavior in a photochemical reaction?
asked
Feb 3
in
PhotoChemistry
0
votes
1
answer
61
views
Calculation of standard enthalpy change for the combustion of propane.If 5 moles of propane react completely in a bomb calorimeter under standard conditions, calculate the standard enthalpy change for the combustion of propane. The balanced chemical equation for the combustion of propane is:C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(g) Given the standard enthalpy of formation at 25°C and 1 atm for C3H8(g), CO2(g), H2O(g) are -103.8 kJ/mol, -393.5 kJ/mol and -241.8 kJ/mol respectively.
asked
Feb 3
in
Chemical thermodynamics
0
votes
1
answer
88
views
How much lead is present in a water sample collected from a local river using atomic absorption spectroscopy?
asked
Jan 30
in
Analytical Chemistry
0
votes
1
answer
61
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A student wishes to determine the power output of an electrochemical cell that utilizes a half-reaction of copper oxide reducing to copper and a half-reaction of zinc oxidizing to zinc ions. The initial concentrations of the copper and zinc ions in the cell are 1.00 M and 0.10 M, respectively. The cell operates for 60 minutes at a constant rate of 0.200 A. Given that the standard cell potential is 1.10 V, calculate the power output of the electrochemical cell.
asked
Jan 22
in
ElectroChemistry
0
votes
1
answer
73
views
A student is given the electrochemical cell reaction:MnO4-(aq) + 8H+(aq) + 5e- → Mn2+(aq) + 4H2O(l)Calculate the standard potential (in volts) of the cell at 25°C given that the standard reduction potential of MnO4-(aq)/Mn2+(aq) couple and the standard reduction potential of the H+(aq)/H2(g) couple are +1.51 V and 0.00 V, respectively. The concentration of MnO4-(aq) is 0.010 M and that of H+(aq) is 1.00 M.
asked
Jan 22
in
ElectroChemistry
0
votes
1
answer
63
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A chemistry student has 5 g of magnesium (Mg) and 10 g of hydrochloric acid (HCl) to react. What mass of magnesium chloride (MgCl2) will be produced? (Assuming the reaction goes to completion and all the reactants are used up)
asked
Jan 22
in
Chemical reactions
0
votes
1
answer
73
views
According to Path-Goal Theory, how does a leader provide direction for followers?
asked
Jan 20
in
Psychology
0
votes
1
answer
43
views
Why is the working memory deficit theory relevant?
asked
Jan 17
in
Psychology
0
votes
1
answer
78
views
How can the theory of planned behaviour be used for social change?
asked
Jan 17
in
Psychology
0
votes
1
answer
31
views
Why is the study of split-brain patients valuable?
asked
Jan 17
in
Psychology
0
votes
1
answer
25
views
When evaluating the theories of attraction, what is the equity theory?
asked
Jan 16
in
Psychology
0
votes
1
answer
37
views
What is the charismatic approach to leadership?
asked
Jan 16
in
Psychology
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