Answers by IsabelleMull

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What is the concentration of iron(II) ions in a water sample that has an absorbance of 0.55 at 510 nm when treated with a standard solution of 4.65 x 10^-5 M iron(II) sulfate using colorimetry?

answered 6 days ago in Analytical Chemistry

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Calculate the heat of crystallization when 10.0 g of sodium acetate trihydrate (NaCH3COO.3H2O) is dissolved in 100.0 mL of water at 25°C and the solution is allowed to cool to 15°C. The specific heat capacity of the solution is 4.18 J/g °C and the density of the solution is 1.0 g/mL. The heat of solution of sodium acetate trihydrate is -7126 J/mol.

answered Jan 23 in ThermoChemistry

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Calculate the equilibrium constant, K, for the electrochemical reaction below, given the standard reduction potentials at 298 K:2 H+ (aq) + 2 e- → H2 (g) E° = 0.00 VFe3+ (aq) + e- → Fe2+ (aq) E° = +0.771 V

answered Jan 23 in ElectroChemistry

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When was the cognitive dissonance theory developed?

answered Jan 20 in Psychology

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Why is it important to respect others' boundaries?

answered Jan 20 in Psychology

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What is the difference between machine learning and deep learning?

answered Jan 15 in Psychology

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What is individual psychology?

answered Jan 14 in Psychology

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What is the name of the psychological theory focused on the influence of culture on behaviour and cognition?

answered Jan 14 in Psychology

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What two organs secrete fluids that aid in digestion?

answered Jan 8 in Science

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Torpor, a process that leads to a decrease in activity and metabolism and allows animals to survive adverse conditions, includes what long winter 'sleep'?

answered Jan 2 in Science

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