Recent activity by Normand57353

1 answer 31 views

Here's a precise problem for a chemistry student to solve:A gas, initially at a pressure of 1 atm and a temperature of 20°C, is contained in a cylinder with a volume of 5 L. If the gas is allowed to expand to a volume of 10 L at a constant temperature of 20°C, what is the final pressure of the gas? Use the ideal gas law equation to solve the problem.

asked 6 days ago in Physical Chemistry

1 answer 60 views

What is the concentration of caffeine in a particular brand of coffee obtained through liquid chromatography?

asked Jan 30 in Analytical Chemistry

1 answer 53 views

Calculate the heat of mixing when 100 mL of 1.0 M HCl is mixed with 100 mL of 1.0 M NaOH at 25°C. The specific heat of the resulting solution is 4.18 J/g°C and the final temperature of the solution is 30°C. Assume the heat capacities of HCl, NaOH, and water are negligible.

asked Jan 23 in ThermoChemistry

1 answer 8 views

Why is meta-analysis useful in psychology research?

asked Jan 20 in Psychology

1 answer 36 views

When did factor analysis become more widely used?

answered Jan 17 in Psychology

1 answer 23 views

When evaluating cognitive theories, what is the role of replication?

asked Jan 16 in Psychology

1 answer 8 views

What is the cognitive dissonance theory's argument regarding prejudice?

answered Jan 16 in Psychology

1 answer 9 views

Compare the side-effect profiles of atypical and typical antipsychotics.

answered Jan 16 in Psychology

1 answer 28 views

Who developed the technique of exposure therapy?

answered Jan 15 in Psychology

1 answer 33 views

What is the Yerkes-Dodson law?

asked Jan 14 in Psychology

1 answer 30 views

What population on earth is already harming the environment due to less resources to go around?

answered Jan 7 in Science

1 answer 11 views

What organisms known as decomposers break down wastes and dead organisms into smaller molecules?

asked Jan 7 in Science

1 answer 48 views

What basic cell structure is made up of a phospholipid bilayer and two layers of phospholipid molecules?

answered Jan 6 in Science

1 answer 30 views

Systemic veins return blood low in what to the right atrium?

asked Dec 31, 2024 in Science

1 answer 26 views

Pure nonpolar covalent bonds exist only between what?

asked Dec 31, 2024 in Science

1 answer 10 views

Each antibody can bind with just one specific type of what, resulting in a signal for a phagocyte to destroy them?

answered Dec 30, 2024 in Science

1 answer 52 views

What function does the longer flagellae perform in dinoflagellates?

answered Dec 27, 2024 in Science

1 answer 11 views

What colors in a neon sign represent real neon?

asked Dec 27, 2024 in Science

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