Recent activity by TomHatley066

1 answer 28 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 1 day ago in Physical Chemistry

1 answer 37 views

Given the following unbalanced chemical equation: Fe + HCl → FeCl3 + H2, what is the balanced equation for the reaction and how many moles of hydrogen gas will be formed when 0.25 moles of Fe react with an excess of HCl?

answered 1 day ago in Chemical reactions

1 answer 4 views

How does changing the concentration of reactants affect the reaction rate and the yield of products in the reaction between sodium thiosulphate and hydrochloric acid, and what is the optimal concentration of reactants to achieve the highest yield?

asked 2 days ago in Chemical kinetics

1 answer 5 views

How do changes in the expression of lipid signaling enzymes affect the metabolism and signaling pathways within cells?

asked 4 days ago in BioChemistry

1 answer 46 views

What is the relative percentage composition of a mixture containing benzene, toluene, and xylene using gas chromatography?

answered 5 days ago in Analytical Chemistry

1 answer 46 views

Here's a question for a chemistry student to solve:What is the effect of changing the concentration of the catalyst on the rate of the catalytic reaction between hydrogen peroxide and potassium iodide?

asked 5 days ago in Physical Chemistry

1 answer 48 views

A chemistry student wants to measure the surface tension of a liquid but does not have access to a tensiometer. How can the student measure the surface tension using simple materials found in a chemistry lab?

asked Jan 22 in Surface Chemistry

1 answer 42 views

Compare and contrast Sigmund Freud's psychosexual theory of development with Erik Erikson's psychosocial theory.

asked Jan 17 in Psychology

1 answer 45 views

What is the difference between a discourse and a narrative?

answered Jan 17 in Psychology

1 answer 55 views

Who developed the theory of Classical Conditioning?

answered Jan 15 in Psychology

1 answer 6 views

What is the role of context in perceptual illusions?

answered Jan 15 in Psychology

1 answer 19 views

Who proposed the psychoanalytic theory?

answered Jan 13 in Psychology

1 answer 18 views

What is the difference between the reliability and validity of a research method?

asked Jan 13 in Psychology

1 answer 20 views

Which system of the body is responsible for bringing air into the body?

answered Jan 8 in Science

1 answer 23 views

What is the smallest unit of structure and function of all living organisms?

asked Jan 7 in Science

1 answer 13 views

What is the si unit for pressure?

answered Jan 7 in Science

1 answer 10 views

What is the process in which a solid changes directly to a gas without going through the liquid state called?

answered Jan 7 in Science

1 answer 57 views

What is the primary component of steel alloys?

answered Jan 7 in Science

1 answer 38 views

What is the most common type of volcano?

asked Jan 7 in Science

1 answer 28 views

What body system gets rid of waste?

answered Jan 6 in Science

...