Recent activity by EddieWhittin

1 answer 28 views

Determine the standard enthalpy of formation for ammonium chloride (NH4Cl) using Hess's Law and the following given reactions: 1) N2(g) + 3H2(g) → 2NH3(g) ΔH° = -46.0 kJ/mol 2) NH3(g) + HCl(g) → NH4Cl(s) ΔH° = -176.2 kJ/mol 3) N2(g) + 2H2(g) + 2Cl2(g) → 2NH4Cl(s) ΔH° = -634.2 kJ/mol

asked 1 day ago in ThermoChemistry

1 answer 3 views

Calculate the standard enthalpy change for the vaporization of 1 mole of water at 100°C and 1 atm pressure. The enthalpy of formation of liquid water is -285.8 kJ/mol and the enthalpy of formation of water vapor is -241.8 kJ/mol.

answered 2 days ago in Chemical thermodynamics

1 answer 65 views

What is the concentration of each ion present in a mixture of chloride, nitrate, and sulfate ions using capillary electrophoresis?

answered 6 days ago in Analytical Chemistry

1 answer 50 views

How can capillary electrophoresis be used to determine the composition of a water sample taken from a polluted river?

asked Jan 29 in Analytical Chemistry

1 answer 44 views

What is the main criticism of the cross-cultural approach to psychology?

asked Jan 20 in Psychology

1 answer 53 views

What is electroconvulsive therapy (ECT)?

asked Jan 14 in Psychology

1 answer 48 views

What is the stereotype threat effect?

answered Jan 14 in Psychology

1 answer 20 views

Where is most of the cell's dna contained?

asked Jan 8 in Science

1 answer 31 views

What three forms does frozen precipitation take?

asked Jan 8 in Science

1 answer 48 views

What is the second highest mountain in the world, at over 28,000 feet?

answered Jan 7 in Science

1 answer 27 views

What do mitochondrions have an inner and outer version of?

asked Jan 6 in Science

1 answer 24 views

What are sudden and dramatic losses of biodiversity called?

answered Jan 3 in Science

1 answer 25 views

The renal hilum is the entry and exit site for structures servicing which organs?

asked Jan 2 in Science

1 answer 51 views

The first living cells may have evolved around how long ago?

answered Jan 2 in Science

1 answer 35 views

The concentration of hydrogen ions in a solution is called?

asked Dec 31, 2024 in Science

1 answer 31 views

Pseudopods are temporary extensions of what?

answered Dec 31, 2024 in Science

1 answer 52 views

In an atom, what is determined by electron distribution in shells?

asked Dec 27, 2024 in Science

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