Recent activity by Maryellen94N

1 answer 24 views

How can quantum chemistry be used to predict the catalytic activity and selectivity of a given chemical reaction?

answered 8 hours ago in Quantum Chemistry

1 answer 25 views

Consider a zinc-copper electrochemical cell in which the half-reaction Zn(s) → Zn²⁺(aq) + 2e⁻ occurs at the anode and the half-reaction Cu²⁺(aq) + 2e⁻ → Cu(s) occurs at the cathode. If the concentration of Zn²⁺(aq) in the anode compartment is 0.500 M and the concentration of Cu²⁺(aq) in the cathode compartment is 0.0250 M, calculate the current density when a current of 2.50 A is passed through the cell. (Assume that the temperature and pressure are constant and that the electrodes are inert.)

answered 1 day ago in ElectroChemistry

1 answer 29 views

How does changing the pH affect the formation of the complex ion Cu(NH3)4 2+, when copper(II) sulfate and excess ammonia are mixed together? How can the equilibrium constant (Kc) be calculated for this reaction at different pH values?

asked 2 days ago in Chemical equilibrium

1 answer 64 views

What is the concentration of copper sulfate in a solution that has an absorbance of 0.332 at a wavelength of 630 nm, given that the molar absorptivity of copper sulfate is 8.8 x 10^3 L/(mol cm)?

asked 6 days ago in Analytical Chemistry

1 answer 41 views

Calculate the electronegativity difference between chlorine (Cl) and sodium (Na) atoms, and determine the type of bond that would form between them.

asked Jan 23 in Chemical bonding

1 answer 29 views

How did Philip Zimbardo's Stanford prison experiment inform us about the effects of social roles?

answered Jan 20 in Psychology

1 answer 45 views

According to the cognitive-behavioural model, what is the best way to treat phobias?

asked Jan 20 in Psychology

0 answers 19 views

When was the cognitive-behavioural model of pain management first proposed?

asked Jan 16 in Psychology

1 answer 4 views

How can we assess the degree of consensus in psychodynamic research?

answered Jan 16 in Psychology

1 answer 22 views

According to the theory of self-determination, what are the three basic needs that must be met to maintain psychological wellbeing?

answered Jan 16 in Psychology

1 answer 17 views

What is the difference between a correlational study and an experiment?

asked Jan 15 in Psychology

1 answer 20 views

What are some common types of anxiety disorders?

answered Jan 14 in Psychology

1 answer 47 views

What are the symptoms of major depressive disorder?

answered Jan 14 in Psychology

1 answer 25 views

What is the main idea of humanistic psychology?

asked Jan 14 in Psychology

1 answer 30 views

What is the auditory pathway in the brain?

answered Jan 13 in Psychology

1 answer 25 views

Who is known for their theory of cognitive development?

asked Jan 10 in Psychology

1 answer 21 views

Which is the final step of cell division?

asked Jan 8 in Science

1 answer 32 views

What is an alloy of copper and tin?

asked Jan 6 in Science

1 answer 46 views

What chemical reaction is the opposite of oxidation?

asked Jan 6 in Science

1 answer 22 views

Parasites usually harm their hosts (or they wouldn't be parasites), but what do they usually stop short of doing?

answered Dec 31, 2024 in Science

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