Recent activity by Jacquie6021

1 answer 25 views

Consider a reaction where Ag is oxidized to Ag+ ions in a solution containing AgNO3. We set up an electrochemical cell with a Ag/Ag+ electrode as the anode and a platinum electrode as the cathode. The standard electrode potential for the Ag/Ag+ electrode is +0.80 V. What is the overpotential required to achieve a current of 2 A if the applied voltage is 1.00 V?

answered 2 days ago in ElectroChemistry

1 answer 26 views

Calculate the standard enthalpy change for the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH) to form sodium chloride (NaCl) and water (H2O), given the following information:- Heat capacity of the solution = 4.18 J/g°C- Volume of the solution = 50 mL- Concentration of HCl = 0.25 M- Concentration of NaOH = 0.10 M

answered 2 days ago in Chemical thermodynamics

1 answer 33 views

Calculate the standard electrode potential of the half-cell reaction Ag+ + e- → Ag, given that the standard reduction potential of Ag+ is 0.80 V.

answered 2 days ago in ElectroChemistry

1 answer 43 views

Calculate the enthalpy of adsorption when 2.0 grams of activated charcoal adsorbs 25 mL of methane gas at a constant temperature of 298 K, given that the pressure is 1 atm. Assume ideal gas behavior for methane.

answered Jan 23 in ThermoChemistry

1 answer 39 views

Calculate the enthalpy change of desorption for a solid substance using the given data: The mass of the substance is 2.5 g, and the temperature change during desorption is 25 °C. The heat capacity of the substance is 1.5 J/g·°C. The molar mass of the substance is 150 g/mol. Assume that the desorption process takes place at constant pressure.

answered Jan 23 in ThermoChemistry

1 answer 40 views

Assuming a constant temperature and pressure, what is the solubility of calcium sulfate (CaSO4) in water, given that the concentration of Ca2+ ion in a saturated solution is 4.7 x 10^-5 mol/L? Provide your answer in grams per liter.

answered Jan 21 in Inorganic Chemistry

1 answer 15 views

What are the two dimensions that self-esteem is based on?

answered Jan 15 in Psychology

1 answer 39 views

Who developed the theory of Discursive Institutionalism?

asked Jan 15 in Psychology

1 answer 26 views

What is social influence?

answered Jan 14 in Psychology

1 answer 29 views

Compare and contrast James-Lange and Cannon-Bard theories of emotion.

answered Jan 14 in Psychology

1 answer 31 views

What is the primary contribution of the humanistic approach to psychology?

answered Jan 10 in Psychology

1 answer 18 views

What types of living things are divided into nonvascular and vascular groupings?

asked Jan 8 in Science

1 answer 16 views

What is the term of a phase change if solid water has it's average kinetic energy increased to change it to liquid water?

asked Jan 7 in Science

1 answer 22 views

What hypothetical link between development of herbivores and plant defenses is observed in nature, for instance in seeds that are unsavory to animals?

asked Jan 6 in Science

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