Recent activity by JustineRober

1 answer 22 views

How can the rate of gas evolution in a chemical reaction be measured and controlled in order to optimize the process for industrial scale production?

asked 18 hours ago in Chemical reactions

1 answer 10 views

How can the photochemical properties of fluorescent dyes be used to improve the efficiency of solar cells?

answered 1 day ago in PhotoChemistry

1 answer 52 views

Consider the reaction: Cu^2+ + 4NH3 ⇌ [Cu(NH3)4]^2+ If the initial concentration of Cu^2+ is 0.5 M and the initial concentration of NH3 is 2 M, what is the concentration of [Cu(NH3)4]^2+ at equilibrium if the concentration of NH3 is increased to 5 M? (Assume the volume of the solution remains constant and the temperature is kept constant.)

answered Feb 3 in Chemical equilibrium

1 answer 62 views

How can we use ion-selective electrodes to determine the concentration of fluoride ions in a solution and what factors can affect the accuracy of this measurement?

answered Jan 30 in Analytical Chemistry

1 answer 40 views

Calculate the enthalpy change of desorption for a solid substance using the given data: The mass of the substance is 2.5 g, and the temperature change during desorption is 25 °C. The heat capacity of the substance is 1.5 J/g·°C. The molar mass of the substance is 150 g/mol. Assume that the desorption process takes place at constant pressure.

answered Jan 23 in ThermoChemistry

1 answer 50 views

As a Chemistry student, analyze the environmental impact of an industrial project that involves the production of fertilizers, and suggest ways to mitigate its negative impact on the environment.

asked Jan 22 in Environmental Chemistry

1 answer 32 views

What is the main criticism of the attribution theory?

answered Jan 16 in Psychology

1 answer 42 views

Who is responsible for the theory of planned behaviour?

asked Jan 16 in Psychology

1 answer 31 views

According to Maslow's Hierarchy of Needs, why do we prioritise certain AI functions over others?

answered Jan 15 in Psychology

1 answer 29 views

What is the main argument of Piaget's cognitive development theory?

answered Jan 15 in Psychology

1 answer 31 views

What is the main goal of archival research in psychology?

answered Jan 15 in Psychology

1 answer 29 views

What is developmental psychology?

asked Jan 14 in Psychology

1 answer 26 views

What is the difference between a population and a sample?

answered Jan 13 in Psychology

1 answer 21 views

Who is Abraham Maslow and what was his contribution to psychology?

answered Jan 13 in Psychology

1 answer 28 views

What is the name of the group that rats are apart of called?

asked Jan 7 in Science

1 answer 31 views

What happens to the temperature of matter as light is absorbed?

answered Jan 6 in Science

1 answer 32 views

The central vacuole maintains turgor pressure against what?

answered Dec 31, 2024 in Science

1 answer 38 views

Isotopes have different number of these in their nuclei?

asked Dec 31, 2024 in Science

1 answer 11 views

Gene expression and what else are usually considered the same molecular process?

answered Dec 30, 2024 in Science

1 answer 58 views

Like the strings of cello, anything that vibrates produces waves of what?

asked Dec 28, 2024 in Science

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