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Practice Problems
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1. If only 0.25 molar NaOH and water are available, how much NaOH needs to be added to make 10 liters of 0.2 M solution of NaOH?
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2. If 2.0 moles of sucrose weighing 684 g is put in 1000 g of water and is then dissolved, what would be the molality of the solution?
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3. If you have a 0.25 M solution of benzene with a density of 15 g/L, calculate the molality of the solution.
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4. If the density of mercury is 13.534 g/cm3 and you have 62.5 cm3 of mercury, how many grams, moles, and atoms of mercury do you have? (Mercury has a mass of 200.6 g/mol.)
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