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How does the presence of reaction intermediates affect the rate of the reaction between potassium iodate and sodium bisulfite, and are there any methods to investigate and measure the effect of the intermediates on the overall reaction rate?
answered
Feb 22
in
Chemical kinetics
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31
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What is the mechanism of the chemical reaction between hydrazine and 2,4-dinitrochlorobenzene in the preparation of 2,4-dinitrophenylhydrazine and what are the steps involved in the synthesis process?
answered
Feb 22
in
Chemical synthesis
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30
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What is the mechanism of the formation of an ester from a carboxylic acid and an alcohol?
answered
Feb 20
in
Organic Chemistry
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34
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What is the equilibrium constant (Kc) expression for the reaction N2(g) + O2(g) ⇌ 2NO(g)? If the initial concentrations for N2, O2, and NO are 0.25 M, 0.15 M, and 0.05 M, respectively, what is the value of Kc for the reaction at equilibrium?
answered
Feb 20
in
Physical Chemistry
0
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39
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What is the effect of catalyst particle size on the rate of a catalytic reaction? Provide a detailed explanation and relevant examples.
answered
Feb 18
in
Physical Chemistry
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34
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How can we predict the chemical reactivity and selectivity of a molecule using quantum chemical calculations?
answered
Feb 14
in
Quantum Chemistry
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34
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Which photosensitive materials have the highest quantum yields for photochemical processes important in photography, and how do these yields impact the efficiency and quality of photographic images produced?
answered
Feb 14
in
PhotoChemistry
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35
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How does the liver metabolize the drug Paracetamol in the body and what are the specific enzymes involved in its biotransformation?
answered
Feb 14
in
Medicinal Chemistry
0
votes
64
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Which type of inorganic solid is KCl, NaCl and MgO? Ionic, covalent or metallic? Provide a brief explanation for your answer.
answered
Feb 13
in
Inorganic Chemistry
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54
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If the concentration of reactants in a gaseous equilibrium reaction is increased, how will the equilibrium constant be affected?
answered
Feb 13
in
Chemical equilibrium
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90
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How does the geometry optimization affect the excited state dynamics of a conjugated organic molecule as calculated through ab initio calculations?
answered
Feb 13
in
Computational Chemistry
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votes
34
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How can the design of a drug target specific types of cancer cells based on their unique genetic characteristics and biochemical pathways, while minimizing toxicity to healthy cells?
answered
Feb 6
in
Medicinal Chemistry
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42
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How can concepts such as quantum mechanics and molecular orbital theory be simplified for students struggling to understand complex chemical concepts in order to improve their understanding and academic success in chemistry?
answered
Feb 5
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Chemical education
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41
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How can chemistry students in an area with limited availability of extracurricular chemistry-related activities find alternative ways to enhance their practical knowledge and skills in the subject?
answered
Feb 5
in
Chemical education
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68
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Calculate the enthalpy change for the following reaction using Hess's Law calculations:2H2S(g) + 3O2(g) → 2H2O(l) + 2SO2(g)Given the following information:2H2(g) + O2(g) → 2H2O(l) ΔH1 = -484 kJ/mol2S(s) + 3O2(g) → 2SO3(g) ΔH2 = -791 kJ/mol2H2(g) + S(s) → 2H2S(g) ΔH3 = -36 kJ/mol
answered
Jan 23
in
ThermoChemistry
0
votes
82
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Calculate the change in entropy when 1 mole of an ideal gas is compressed from 4 L to 1 L irreversibly at a temperature of 298 K.
answered
Jan 23
in
Physical Chemistry
0
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44
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A solution containing 0.5 M of iron(III) ions and 0.5 M of thiocyanate ions is allowed to reach equilibrium. If the equilibrium constant of the formation of the FeSCN2+ complex ion is 3.0 x 10^3, calculate the concentration of FeSCN2+ complex ion at equilibrium when the initial concentration of thiocyanate ions is doubled.
answered
Jan 22
in
Chemical equilibrium
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51
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Why is it important to set boundaries when using social media?
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Jan 20
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Psychology
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111
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What is investigative forensic psychology?
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Jan 17
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Psychology
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61
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What is the relationship between cognition and emotion?
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Jan 17
in
Psychology
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