Recent activity by JoleenGoethe

1 answer 77 views

What is the concentration of chloride ions present in a sample of seawater using an ion-selective electrode?

answered 6 days ago in Analytical Chemistry

1 answer 49 views

Calculate the concentration of Cl^- ions in a solution if the electrode potential of a Pt/AgCl electrode in the solution is measured to be +0.222 V versus the standard hydrogen electrode (SHE) at 25°C. The standard electrode potential for the reaction AgCl(s) + e^- → Ag(s) + Cl^- is +0.222 V versus SHE at 25°C. Assume the activity coefficient of Cl^- ions in the solution is equal to 1.

asked Jan 23 in ElectroChemistry

1 answer 35 views

Calculate the activation energy for the reaction between hydrogen gas and iodine gas to form hydrogen iodide, given that the rate constant at 25°C is 4.2 × 10^-4 L/mol.s and the frequency factor is 1.5 × 10^12 s^-1.

answered Jan 23 in Chemical reactions

1 answer 72 views

How can chemistry educators effectively teach the applications of chemistry in various industries, such as pharmaceuticals, agriculture, and manufacturing, to help students understand the role of chemistry in society and the economy?

answered Jan 21 in Chemical education

1 answer 35 views

What is the name of the theory that suggests that our behaviour can be understood by studying how our brain perceives and processes information?

asked Jan 20 in Psychology

1 answer 58 views

According to the creativity-supporting environment model, what are the three key environmental factors that foster creativity?

answered Jan 20 in Psychology

1 answer 21 views

What is the social learning theory by Bandura?

asked Jan 15 in Psychology

1 answer 20 views

What are the four principles of indigenous psychology?

asked Jan 14 in Psychology

1 answer 54 views

Who is known for their work on the social identity theory?

asked Jan 10 in Psychology

1 answer 26 views

What group of animals has permeable skin that makes them vulnerable to pollution?

asked Jan 6 in Science

1 answer 62 views

What carries blood away from the heart?

answered Jan 6 in Science

1 answer 25 views

The posterior half of the foot is formed by seven tarsal bones. the most superior of these bones is called?

asked Jan 2 in Science

1 answer 12 views

Enzymes in the stomach and small intestine break down proteins into what components?

answered Dec 30, 2024 in Science

1 answer 31 views

Each endocrine hormone affects only certain "target" cells, which have molecules of what on the surface that enable binding of a given hormone?

answered Dec 30, 2024 in Science

1 answer 31 views

Diamond is extremely hard because of the strong bonding between ______ in all directions?

answered Dec 30, 2024 in Science

1 answer 21 views

Burning trees produces most of the same pollutants as burning what?

answered Dec 30, 2024 in Science

1 answer 35 views

At any specific time, the rate at which a reaction is proceeding is known as its what?

answered Dec 30, 2024 in Science

1 answer 7 views

In a heat map, what color represents the hottest temperatures?

answered Dec 28, 2024 in Science

1 answer 7 views

How is the chance of survival affected when animals lack parental care?

asked Dec 27, 2024 in Science

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