Questions by AundreaWhitf

0 votes

1 answer 82 views

What is the step-by-step procedure for the preparation of 2,4-dinitrobenzoic acid from benzoic acid and nitric acid, including the necessary reaction conditions and precautions that should be taken during the synthesis process?

asked Feb 22 in Chemical synthesis

0 votes

1 answer 78 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?

asked Feb 20 in ThermoChemistry

0 votes

1 answer 76 views

What is the effect of increasing temperature on the formation of a complex ion in a chemical equilibrium reaction? Use a balanced chemical equation and appropriate equilibrium constants to support your answer.

asked Feb 19 in Chemical equilibrium

0 votes

1 answer 79 views

What is the difference in the boiling points of a primary, secondary, and tertiary alcohol with the same molecular weight? Provide an explanation based on intermolecular forces.

asked Feb 17 in Organic Chemistry

0 votes

1 answer 121 views

Design and synthesize a polymer-based smart material that can undergo reversible changes in response to changes in temperature or pH, and explain the mechanism behind these changes using chemical principles.

asked Feb 4 in Polymer Chemistry

0 votes

1 answer 142 views

Calculate the standard enthalpy of formation of hydrogen fluoride (HF) given the following reactions and enthalpy change values:2H2(g) + O2(g) → 2H2O(g) ΔH° = -484 kJH2(g) + Cl2(g) → 2HCl(g) ΔH° = -184 kJ1/2 F2(g) + H2(g) → HF(g) ΔH° = -273 kJ.

asked Feb 3 in ThermoChemistry

0 votes

1 answer 79 views

Calculate the change in Gibbs free energy for the reaction between hydrogen gas and iodine gas that forms hydrogen iodide gas. The balanced equation is as follows:H2(g) + I2(g) → 2HI(g)Assume a temperature of 298 K and use the following standard molar free energy of formation values:∆Gf° (HI) = -17.4 kJ/mol∆Gf° (H2) = 0 kJ/mol∆Gf° (I2) = 0 kJ/mol

asked Jan 23 in Chemical thermodynamics

0 votes

1 answer 84 views

Calculate the cell potential for the following electrochemical reaction: Cu(s) + 2 Ag⁺(aq) → Cu²⁺(aq) + 2 Ag(s) Given that the standard reduction potentials are: Cu²⁺(aq) + 2e⁻ → Cu(s) E° = +0.34 V Ag⁺(aq) + e⁻ → Ag(s) E° = +0.80 V

asked Jan 23 in ElectroChemistry

0 votes

1 answer 90 views

A zinc electrode was kept in a 0.1 M ZnSO4(aq) solution, and a copper electrode was kept in a 0.1 M CuSO4(aq) solution. When 1500 C of electricity was passed through the cell, how many grams of copper were deposited on the cathode? (Assume 100 % efficiency and the Faraday constant is 96500 C/mol)

asked Jan 22 in ElectroChemistry

0 votes

1 answer 125 views

What did Pavlov's experiment with dogs demonstrate?

asked Jan 20 in Psychology

0 votes

1 answer 157 views

Why is the optimal distinctiveness theory important?

asked Jan 20 in Psychology

0 votes

1 answer 67 views

What are the limitations of the trait approach to leadership?

asked Jan 16 in Psychology

0 votes

1 answer 132 views

What is cognitive architecture?

asked Jan 16 in Psychology

0 votes

1 answer 48 views

What is the role of cognitive processes in behavioural psychology?

asked Jan 15 in Psychology

0 votes

1 answer 131 views

What is the difference between a stereotype and a schema?

asked Jan 14 in Psychology

0 votes

1 answer 72 views

What is context-dependent memory?

asked Jan 14 in Psychology

0 votes

1 answer 78 views

What is distributive negotiation?

asked Jan 13 in Psychology

0 votes

1 answer 44 views

What is the difference between classical conditioning and operant conditioning?

asked Jan 13 in Psychology

0 votes

1 answer 136 views

What forms when crystals precipitate out from a liquid?

asked Jan 6 in Science

0 votes

1 answer 92 views

Proto-oncogenes are positive cell-cycle regulators but when mutated, they can become what?

asked Dec 31, 2024 in Science

Categories