Recent activity by Joann88M2924

1 answer 26 views

How can chemistry teachers or institutions provide adequate and effective hands-on experimentation opportunities for students, despite limited resources and equipment?

answered 6 days ago in Chemical education

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How can chemistry students increase their exposure to current research in the field, and what resources are available to them?

answered 6 days ago in Chemical education

1 answer 45 views

Here is a precise question for the student to solve:A student performed an electroplating experiment of copper metal onto an electrode by passing a constant current of 1.5 A through a solution of copper(II) sulfate for 50 minutes. If the mass of the copper metal obtained was 1.23 grams, calculate the Faraday constant using the following formula: Faraday constant = (mass of substance plated x molar mass of substance) / (current x time)

answered 6 days ago in ElectroChemistry

1 answer 32 views

Calculate the standard enthalpy change for the following neutralization reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH):HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l)Given: - The standard enthalpy of formation (ΔHf°) of NaCl(aq) is -407.3 kJ/mol.- The standard enthalpy of formation (ΔHf°) of H2O(l) is -285.8 kJ/mol.- The specific heat capacity (c) of the solution is 4.18 J/g°C.- The temperature change (ΔT) during the reaction is 15°C. - The mass (m) of the solution is 50.0 g. What is the standard enthalpy change (ΔH°) for the neutralization reaction between HCl and NaOH?

asked Feb 3 in Chemical thermodynamics

1 answer 8 views

Where did Edwin Boring conduct his research on sensory psychology?

asked Jan 17 in Psychology

1 answer 35 views

What are the similarities between cognitive dissonance theory and self-perception theory?

asked Jan 17 in Psychology

1 answer 27 views

Where does the criterion of testability come from?

asked Jan 16 in Psychology

1 answer 47 views

According to the attachment theory, why do we form emotional bonds with others?

asked Jan 16 in Psychology

1 answer 9 views

According to the scientific realism philosophy, what is the ultimate goal of science?

answered Jan 15 in Psychology

1 answer 64 views

What is narcissistic personality disorder?

answered Jan 13 in Psychology

1 answer 38 views

How can cultural and contextual factors influence the expression and perception of mental disorders?

asked Jan 13 in Psychology

1 answer 30 views

There are three basic types of hormones: lipid-derived, amino acid-derived, and what?

answered Jan 2 in Science

1 answer 30 views

In many cases, the alkali metal amide salt (mnh2) is not very soluble in liquid ammonia and does what?

asked Dec 31, 2024 in Science

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