Answers by Philip176831

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How can the concentration of lead in a sample of water be determined using atomic absorption spectroscopy? What factors should be taken into consideration when preparing the sample and running the analysis? What is the limit of detection for lead using this method, and how does it compare to other methods for detecting heavy metals in water samples?

answered Jan 29 in Analytical Chemistry

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Calculate the lattice energy of sodium chloride (NaCl) using Born-Haber cycle and Hess's law. Given the following data:- Enthalpy of sublimation of sodium (Na): +108.6 kJ/mol- Enthalpy of dissociation of chlorine (Cl2): +243.0 kJ/mol- Bond energy of Na-Cl bond: -412.0 kJ/mol- Ionization energy of sodium (Na): +496.0 kJ/mol- Electron affinity of chlorine (Cl): -349.0 kJ/mol- Heat of formation of sodium chloride (NaCl): -411.0 kJ/mol.

answered Jan 23 in Inorganic Chemistry

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What is a sample bias, and how can it impact study findings?

answered Jan 15 in Psychology

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What are night terrors?

answered Jan 13 in Psychology

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What is the leading cause of soil erosion?

answered Jan 7 in Science

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What is oceanography the study of?

answered Jan 6 in Science

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What is formed when hot lava cools?

answered Jan 6 in Science

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