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Author Archives: Anonymous

Which of the following substances should be the most soluble…

Which of the following substances should be the most soluble in ethanol (CH3CH2OH)?

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Determine the mass of a nonvolatile, nonionizing compound th…

Determine the mass of a nonvolatile, nonionizing compound that must be added to 3.83 kg of water to lower the freezing point to 98.70°C. The molar mass of the compound is 50.0 g/mol and the Kf for water is 1.86°C kg/mol.

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Liquid A and liquid B form a solution that behaves ideally a…

Liquid A and liquid B form a solution that behaves ideally according to Raoult’s law. The vapor pressures of the pure substances A and B are 233 torr and 135 torr, respectively. Determine the vapor pressure over the solution if 1.21 moles of liquid A is added to 5.30 moles of liquid B.

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Which statement regarding water is true?

Which statement regarding water is true?

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A solution is made by dissolving 27.8 g of nicotine (molar m…

A solution is made by dissolving 27.8 g of nicotine (molar mass = 160 g/mol) in 145 g of cyclohexane (C6H12) to form 142 mL of solution.  Calculate the mole fraction of the solute and the molarity, respectively, of this solution.

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Which statement about hydrogen bonding is true?

Which statement about hydrogen bonding is true?

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Which of the following is the correct answer to problem #14?

Which of the following is the correct answer to problem #14?

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Which of the following is the correct answer to problem #13?

Which of the following is the correct answer to problem #13?

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Which of the following is the correct answer to problem #19?

Which of the following is the correct answer to problem #19?

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Which of the following is the correct answer to problem #2?

Which of the following is the correct answer to problem #2?

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