Recent activity by LakeishaMenh

1 answer 54 views

How can we determine the concentration of caffeine in a sample of coffee using liquid chromatography?

answered Jan 29 in Analytical Chemistry

1 answer 57 views

A chemistry student wants to mix 50 mL of water at 25°C with 50 mL of ethanol at 25°C to make a solution. The heat of mixing for water and ethanol is -21.2 kJ/mol. Calculate the heat (in kJ) absorbed or released when the two liquids are mixed. (Assume the densities of water and ethanol are approximately 1 g/mL and 0.8 g/mL, respectively.)

answered Jan 22 in ThermoChemistry

1 answer 38 views

What is the name of the theory that suggests that our behaviour is shaped by the environment?

asked Jan 20 in Psychology

1 answer 26 views

What is the relationship between the amygdala and emotional processing?

answered Jan 20 in Psychology

1 answer 48 views

Where did Aaron Beck develop the cognitive therapy approach?

asked Jan 17 in Psychology

1 answer 26 views

According to the cognitive theory, what is catastrophizing?

answered Jan 17 in Psychology

1 answer 22 views

Where might a social psychologist look for the cause of prejudice?

answered Jan 17 in Psychology

1 answer 35 views

Who is Ivan Pavlov and what was his contribution to psychology?

asked Jan 13 in Psychology

1 answer 6 views

What type of map projection is used for small areas to avoid distortion?

asked Jan 8 in Science

1 answer 21 views

What has has revolutionized biological and biomedical research and applications?

answered Jan 6 in Science

1 answer 22 views

Fog disappears when the water droplets change back to what?

answered Dec 30, 2024 in Science

1 answer 27 views

Acting like drawstrings to close off the alimentary canal, what regulates the passage of material between compartments?

answered Dec 27, 2024 in Science

1 answer 30 views

Some membranes have what kind of surfaces exposed to the cytoplasm?

asked Dec 27, 2024 in Science

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