Recent activity by JanetteBrewi

1 answer 25 views

Given the following half-reactions:Cu2+ (aq) + 2 e- -> Cu (s) E° = +0.34 VZn2+ (aq) + 2 e- -> Zn (s) E° = -0.76 VCalculate the equilibrium constant (K) for the reaction: Cu2+ (aq) + Zn (s) -> Zn2+ (aq) + Cu (s)

asked 1 day ago in ElectroChemistry

1 answer 23 views

Calculate the standard free energy change (ΔG°) for the following redox reaction: Zn (s) + 2H+ (aq) → Zn2+ (aq) + H2 (g)Given: ΔG°f (Zn2+) = -153.9 kJ/mol ΔG°f (H+) = 0 kJ/mol ΔG°f (H2) = 0 kJ/mol ΔG°f (Zn) = 0 kJ/mol

answered 2 days ago in Chemical thermodynamics

1 answer 44 views

What is the effect of adding a catalyst on the equilibrium position of a redox reaction between potassium permanganate and oxalic acid? Provide a detailed explanation and calculations to support your answer.

answered 5 days ago in Chemical equilibrium

1 answer 42 views

How does the presence of acid mine drainage in bodies of water impact the pH level, dissolved oxygen content, and heavy metal concentrations of the water, and what can be done to mitigate these effects?

asked 6 days ago in Environmental Chemistry

1 answer 53 views

How does the liver metabolize the drug acetaminophen, and what are the potential consequences of its metabolism by different cytochrome P450 enzymes in terms of drug efficacy and toxicity?

answered 6 days ago in Medicinal Chemistry

1 answer 32 views

Calculate the bond dissociation energy of the carbon-hydrogen bond in methane (CH4), given that the reaction CH4(g) → CH3(g) + H(g) has a ΔH° of 435 kJ/mol.

asked Jan 23 in ThermoChemistry

1 answer 26 views

What is situated cognition?

answered Jan 20 in Psychology

1 answer 18 views

What is the difference between a 'topic guide' and an 'interview guide' in discursive psychology?

asked Jan 16 in Psychology

1 answer 49 views

Where does the self-medication hypothesis suggest addiction comes from?

asked Jan 15 in Psychology

1 answer 34 views

Which proteins bind to the surfaces of microorganisms and are particularly attracted to pathogens that are already tagged by the adaptive immune system?

asked Jan 8 in Science

1 answer 37 views

Which part of the brain regulates the rate of breathing?

asked Jan 8 in Science

1 answer 21 views

Which law explains why a ship weighing thousands of metric tons floats on water?

asked Jan 8 in Science

1 answer 20 views

What is the stage called for babies that are in the first year of life after birth?

answered Jan 7 in Science

1 answer 18 views

What forms the small holes found in bread?

answered Jan 6 in Science

1 answer 45 views

Many species use their body shape and coloration to avoid being detected by what?

answered Dec 31, 2024 in Science

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