Answers by HarrisMagoff

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How can the concentration of a particular substance in a given sample be determined using colorimetry, and what are the factors that affect the accuracy of the measurement?

answered Jan 29 in Analytical Chemistry

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A student needs to determine the amount of copper present in a sample of brass using coulometry. If the sample is dissolved in acid and subjected to coulometric analysis using a standard silver electrode, what is the concentration of copper (in ppm) in the brass sample?

answered Jan 22 in Analytical Chemistry

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A sample of gas at 25°C and 2 atm is expanded suddenly against a constant external pressure of 1 atm. Calculate the change in entropy of the gas as it expands irreversibly.

answered Jan 22 in Physical Chemistry

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Why is the dopamine hypothesis significant?

answered Jan 20 in Psychology

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Who proposed the self-evaluation maintenance theory of self-esteem?

answered Jan 15 in Psychology

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An ammeter must be connected in series with what to allow it to accurately measure the current flow without causing any disruptions?

answered Dec 30, 2024 in Science

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