Answers by AnnabelleHed

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What strategies can a student use to adequately prepare for a chemistry exam and avoid inadequate exam preparation?

answered 6 days ago in Chemical education

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What is the concentration of iron (II) ions in a water sample if the absorbance of the sample at a wavelength of 565 nm is measured to be 0.842 and it was found that a 1 cm cuvette contains 1.25 x 10^-4 moles of iron (II) ions? (The molar absorptivity of iron (II) ions at 565 nm is 1.9 x 10^4 L/mol cm).

answered 6 days ago in Analytical Chemistry

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A student needs to calculate the Tafel slopes for the anodic and cathodic reactions from a given set of experimental data obtained during an electrochemical experiment. The experiment involves the corrosion of iron in a solution with a pH of 3.5. The anodic and cathodic current densities were measured at various applied potentials ranging from -700 mV vs SHE to -400 mV vs SHE. The student needs to plot a Tafel plot for each reaction and calculate their corresponding Tafel slopes. Based on the obtained results, the student needs to explain the corrosion mechanism of iron in the given acidic solution.

answered Jan 22 in ElectroChemistry

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According to sociobiology, what is the purpose of animal behaviour?

answered Jan 16 in Psychology

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What is the phi coefficient?

answered Jan 16 in Psychology

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When does the Cognitive Theory of Multimedia Learning suggest learning is enhanced?

answered Jan 15 in Psychology

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What is testability?

answered Jan 15 in Psychology

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What did Abraham Maslow propose in his Hierarchy of Needs theory?

answered Jan 13 in Psychology

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Which is the least massive outer planet?

answered Jan 8 in Science

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What can help scientist gather information for an investigation?

answered Jan 6 in Science

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Group 16 is called what?

answered Dec 30, 2024 in Science

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