Recent activity by KermitGodoy

1 answer 22 views

Calculate the standard potential of a Daniell cell if the concentration of copper ions and zinc ions in their respective half-cells is 1.0 M and the temperature of the cell is 25°C. The standard reduction potentials of copper and zinc electrodes are +0.34 V and -0.76 V respectively.

asked 2 days ago in Physical Chemistry

1 answer 56 views

How can we accurately determine the concentration of iron in a water sample using colorimetry, and what is the potential impact on human health if the concentration exceeds a certain threshold?

asked Jan 29 in Analytical Chemistry

1 answer 37 views

Calculate the Gibbs free energy change for the combustion of ethane gas in oxygen gas to form carbon dioxide gas and water vapor at a temperature of 25 °C and a pressure of 1 atm, given the following thermodynamic data:Reaction: C2H6(g) + 3.5O2(g) → 2CO2(g) + 3H2O(g)ΔH°rxn = -1560.8 kJ/molΔS°rxn = -283.3 J/K•molUsing the above information, what is the value of the Gibbs free energy change at standard conditions?

asked Jan 23 in Chemical thermodynamics

1 answer 42 views

According to Erik Erikson's theory, what is the primary task of adolescence?

answered Jan 17 in Psychology

1 answer 19 views

What is the ecological validity of laboratory experiments?

asked Jan 16 in Psychology

1 answer 16 views

What is the double-blind technique?

answered Jan 16 in Psychology

1 answer 28 views

Why is uranus so faint?

asked Jan 8 in Science

1 answer 48 views

What type of input is not required during passive transport?

asked Jan 8 in Science

1 answer 41 views

What term describes the energy of an object that is moving or has the potential to move?

answered Jan 7 in Science

1 answer 22 views

What machine is used to determine the calories in food, as well as the average heat yield from burning various grades of coal and oil?

asked Jan 7 in Science

1 answer 39 views

What kind of reproduction produces genetically identical organisms or clones?

asked Jan 7 in Science

1 answer 23 views

Lipids are broken down by what?

answered Dec 31, 2024 in Science

...