Recent activity by GiaMelendez4

1 answer 16 views

Calculate the standard entropy change for the reaction 2H2(g) + O2(g) → 2H2O(g) given the standard entropy values of H2(g) = 130.6 J/mol K, O2(g) = 205.0 J/mol K, and H2O(g) = 188.8 J/mol K. Also, determine whether the reaction is spontaneous or not at 298 K.

answered 2 days ago in Inorganic Chemistry

1 answer 33 views

How can we determine the concentration of caffeine in a sample of coffee using liquid chromatography, and how can we optimize the chromatographic conditions to obtain the most accurate results?

asked Jan 29 in Analytical Chemistry

1 answer 36 views

A student needs to determine the activation energy for an electrochemical reaction involving the oxidation of Zinc using a voltage of 1.85V, a current of 0.25A and a temperature of 25°C. Given that the standard potential for this reaction at 25°C is -0.76V, what is the activation energy of the reaction?

asked Jan 22 in ElectroChemistry

1 answer 42 views

What is the solubility of Calcium chloride (CaCl2) in distilled water at room temperature?

asked Jan 21 in Inorganic Chemistry

1 answer 45 views

What is the impact of culture on mental rotation?

answered Jan 17 in Psychology

1 answer 17 views

What is theoretical bias?

asked Jan 16 in Psychology

1 answer 5 views

Why is gender dysphoria significant in gender psychology?

asked Jan 16 in Psychology

1 answer 58 views

Who proposed the social learning theory of personality?

answered Jan 16 in Psychology

1 answer 5 views

What is the significance of having a research question that is testable?

asked Jan 15 in Psychology

1 answer 41 views

What is the cognitive theory of learning?

asked Jan 15 in Psychology

1 answer 17 views

What happens when a sodium atom loses an electron?

answered Jan 6 in Science

1 answer 24 views

Carbon behaves as a metal because it conducts which two things well?

answered Dec 30, 2024 in Science

1 answer 44 views

The number of waves that pass a fixed point in a given amount of time is called what?

asked Dec 28, 2024 in Science

...