Recent activity by HalWhitten9

1 answer 19 views

Calculate the standard enthalpy change for the dissolution of 3 mol of potassium chloride (KCl) in 1000 mL of water, given that the molar enthalpy of dissolution is -17.4 kJ/mol.

asked 2 days ago in Chemical thermodynamics

1 answer 30 views

How does changing the metal center in a complex affect its photochemical properties? Compare the photochemical properties of a series of metal complexes with different metal centers under identical conditions.

answered 2 days ago in PhotoChemistry

1 answer 45 views

How can UV-Vis spectroscopy be used to identify the presence of specific functional groups in a compound, such as aldehydes or ketones? What are the characteristic absorbance wavelengths for these functional groups, and how can their presence be confirmed through spectral analysis?

answered Jan 29 in Analytical Chemistry

1 answer 71 views

A student needs to determine the mass of silver that can be deposited on a silver electrode using a current of 2.5 A for 3 hours in a solution containing 0.2 M silver ions. What is the mass of silver deposited on the electrode? (Assuming 100% current efficiency and atomic weight of silver is 107.9 g/mol)

asked Jan 22 in ElectroChemistry

1 answer 45 views

How can positive psychology be used to promote physical health?

answered Jan 20 in Psychology

1 answer 47 views

Why is allyship important in promoting social justice?

asked Jan 17 in Psychology

1 answer 47 views

What is the interpersonal theory of personality disorders?

answered Jan 16 in Psychology

1 answer 24 views

How does the Group Identification Theory describe end-of-life coping mechanisms?

answered Jan 16 in Psychology

1 answer 28 views

When evaluating classical conditioning, what is a major limitation of the theory?

answered Jan 16 in Psychology

1 answer 6 views

Which theory explains how populations of organisms can change over time?

answered Jan 8 in Science

1 answer 52 views

What sprouts up on stalks from the bed of moss gametophytes?

answered Jan 7 in Science

1 answer 32 views

What lipid, added to certain foods to keep them fresher longer, increases the risk of heart disease?

answered Jan 7 in Science

1 answer 6 views

What are the largest phylum of the animal kingdom?

answered Jan 3 in Science

1 answer 36 views

What abbreviated form refers to oxidation-reduction reactions, which are part of respiration and photosynthesis?

answered Jan 2 in Science

1 answer 22 views

Amylase and pepsin are examples of enzymes needed for what process?

answered Dec 30, 2024 in Science

1 answer 42 views

What occurs when there is little to no rain in a period of time?

answered Dec 27, 2024 in Science

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