Recent activity by LeonaSpivey

1 answer 22 views

Given a sample of mesoporous silica with a surface area of 500 m²/g, an amount of physisorbed nitrogen of 4.2 µmol/g, and assuming a monolayer coverage of 16.2 µmol/m², calculate the BET surface area of the silica.

answered 1 day ago in Surface Chemistry

1 answer 77 views

A chemistry student needs to calculate the concentration of copper(II) ions in a 250 mL solution, given that a current of 1.5 A was applied for 60 minutes to a copper electrode in contact with the solution. The initial concentration of copper(II) ions was 0.05 M, and the Faraday constant is 96,485 C/mol. What is the final concentration of copper(II) ions in the solution?

asked Jan 22 in ElectroChemistry

1 answer 6 views

How can disidentification be used for attitude change?

answered Jan 17 in Psychology

1 answer 7 views

When might cognitive dissonance occur?

answered Jan 17 in Psychology

1 answer 28 views

According to self-categorisation theory, what is group identification?

asked Jan 16 in Psychology

1 answer 4 views

When evaluating theories in existential psychology, what is the importance of considering the validity of the measures?

asked Jan 16 in Psychology

1 answer 45 views

Who proposed the regret theory?

answered Jan 15 in Psychology

1 answer 20 views

What is the difference between a research hypothesis and a statistical hypothesis?

asked Jan 15 in Psychology

1 answer 22 views

What is the main theoretical framework for evolutionary psychology?

answered Jan 15 in Psychology

1 answer 5 views

What is visual attention?

asked Jan 14 in Psychology

1 answer 24 views

Which feature in maps allows users to make corrections between magnetic north and true north?

asked Jan 8 in Science

1 answer 44 views

What is the top 200 meters of water in the ocean called?

asked Jan 7 in Science

1 answer 21 views

What is the process called in which living things produce offspring?

answered Jan 7 in Science

1 answer 30 views

What is the process by which some solids transition directly into gases?

asked Jan 7 in Science

1 answer 20 views

What is the alkaline hydrolysis reaction of an ester called?

answered Jan 6 in Science

1 answer 23 views

Red blood cells do not perform aerobic respiration, but they do perform what process that is nearly universal to organisms?

answered Dec 31, 2024 in Science

1 answer 28 views

In a heterozygote with one dominant and one recessive allele, which is expressed?

asked Dec 30, 2024 in Science

1 answer 8 views

Because the masses of subatomic particles are so small, a new unit, called what, was defined?

answered Dec 30, 2024 in Science

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