Recent activity by KAULeora045

1 answer 31 views

Given the following reaction at standard conditions:Cu(s) + 2Ag+(aq) -> Cu2+(aq) + 2Ag(s) Calculate the cell potential, E°cell, at 25°C using the standard reduction potentials:Cu2+(aq) + 2e- -> Cu(s), E°red = +0.34 VAg+(aq) + e- -> Ag(s), E°red = +0.80 V

asked 1 day ago in ElectroChemistry

1 answer 70 views

What is the concentration of chloride ions in a given salt solution using a Chloride ion-selective electrode with a potential reading of -0.35 V?

asked 6 days ago in Analytical Chemistry

1 answer 7 views

A chemistry student needs to determine the pH of an unknown solution using a pH meter. The student is given the following equipment: pH meter, reference electrode, and a container for the solution. The student should describe the steps needed to measure the pH of the solution and explain the significance of the obtained pH value.

asked Jan 22 in Analytical Chemistry

1 answer 60 views

A chemistry student needs to calculate the standard enthalpy change for the combustion reaction of methane gas (CH4) at 298 K and 1 atm pressure. The equation for the reaction is:CH4(g) + 2O2(g) --> CO2(g) + 2H2O(l)Given the following standard enthalpies of formation at 298 K:ΔHf(CO2) = -393.5 kJ/molΔHf(H2O) = -285.8 kJ/molΔHf(CH4) = -74.8 kJ/molCalculate ΔHrxn, the standard enthalpy change for the combustion reaction of methane gas.

answered Jan 22 in Chemical thermodynamics

1 answer 41 views

According to the mental set theory, why can past experience be a hindrance to problem solving?

asked Jan 20 in Psychology

1 answer 23 views

Please evaluate the frustration-aggression hypothesis.

asked Jan 20 in Psychology

1 answer 23 views

What is the biological approach to understanding mental illness?

answered Jan 15 in Psychology

1 answer 6 views

What is the social constructivism approach to human sexuality?

answered Jan 15 in Psychology

1 answer 5 views

What is the difference between implicit and explicit attitudes?

answered Jan 13 in Psychology

1 answer 20 views

What type of behavior is most flexible?

answered Jan 8 in Science

1 answer 47 views

What part of the atmosphere is the heat source?

answered Jan 7 in Science

1 answer 7 views

What is the process in which a layer of a second metal is deposited on the metal electrode that acts as the cathode during electrolysis?

answered Jan 7 in Science

1 answer 39 views

What body part does encephalitis attack?

answered Jan 6 in Science

1 answer 7 views

What atmosphere do gills help exchange gas in?

answered Dec 27, 2024 in Science

1 answer 52 views

Where is food stored?

answered Dec 27, 2024 in Science

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