Recent activity by ShaunTulloch

1 answer 65 views

What is the concentration of copper sulfate in a solution that has an absorbance of 0.332 at a wavelength of 630 nm, given that the molar absorptivity of copper sulfate is 8.8 x 10^3 L/(mol cm)?

answered 6 days ago in Analytical Chemistry

1 answer 72 views

What is the concentration of chloride ions in a sample of seawater, given that the sample had a potential difference of 0.64 V and the standard potential of the silver-silver chloride electrode is 0.22 V at 25°C?

answered 6 days ago in Analytical Chemistry

1 answer 46 views

Calculate the enthalpy of adsorption of benzene vapor on silica gel at 25°C and a pressure of 2.0 atm, given that the mass of adsorbent used is 0.25 g and the adsorption capacity of silica gel for benzene at this temperature and pressure is 0.75 g/g.

asked Jan 23 in ThermoChemistry

1 answer 49 views

Calculate the enthalpy change for the oxidation of methane gas (CH4) to carbon dioxide (CO2) and water (H2O) using the following balanced chemical equation:CH4 (g) + 2O2 (g) -> CO2 (g) + 2H2O (l)The standard enthalpy of formation of methane, carbon dioxide, and water are -74.81 kJ/mol, -393.5 kJ/mol, and -285.83 kJ/mol respectively.

asked Jan 23 in ThermoChemistry

1 answer 44 views

Identify the major product (or products) of the following reaction: In the presence of a strong acid catalyst, a primary alcohol R-CH2OH is treated with an excess of hydrogen halide (HX).

answered Jan 21 in Organic Chemistry

1 answer 24 views

According to the opponent-process theory, what happens when one color is stimulated?

answered Jan 20 in Psychology

1 answer 30 views

Please compare the social identity theory and social cognitive theory of prejudice.

answered Jan 20 in Psychology

0 answers 26 views

When was the ecological momentary assessment method proposed?

asked Jan 16 in Psychology

1 answer 21 views

Why do cognitive psychologists suggest that the mind operates like a computer?

answered Jan 15 in Psychology

1 answer 29 views

According to Freud, why do we have subconscious thoughts?

answered Jan 15 in Psychology

1 answer 22 views

When was Charles Spearman's theory of 'g' first proposed?

asked Jan 15 in Psychology

1 answer 25 views

What is the theory of bottom-up processing?

answered Jan 15 in Psychology

1 answer 22 views

Competition within a species is called what?

asked Dec 30, 2024 in Science

1 answer 56 views

The voltage is measured using a voltmeter, which measures which difference across two points?

asked Dec 28, 2024 in Science

1 answer 22 views

The four types of light receptors include different types of cones and what else?

asked Dec 27, 2024 in Science

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