Quiz in Percent by mass volume

How much pizza can you eat in an hour? A standard pizza is usually divided into eight parts. Most customers can eat two out of eight pizzas, or one-fourth of the whole pizza.

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How are the concentrations of solutions expressed?

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In what instances does the unit % m/m more appropriate to use than % v/v?

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Calculate the concentration of a solution in percentage by mass prepared by dissolving 12 g of NaCl to produce 50 g of the solution.

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Calculate the concentration of a solution in percentage by volume prepared by dissolving 10 mL of acetone to produce 100 mL of the solution.

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Calculate the concentration of ethanol, in percentage per volume, in a solution prepared by dissolving 11 mL of ethanol with 10 mL of water.

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Calculate the concentration of sodium hydroxide (NaOH), in percentage per mass, in a solution prepared by dissolving 22 g of NaOH with 53 g of water.

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Calculate the mass of sodium acetate (NaCH3COO), in grams, needed to be dissolved in water to produce a 150 mL solution with a concentration of 20 % m/v.

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Calculate the mass of potassium nitrate (KNO3), in grams, needed to be dissolved in water to produce a 1000 mL solution with a concentration of 15 % m/v.

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Calculate the concentration of a solution in percentage by mass prepared by dissolving 10 g of glucose to produce 11 g of the solution.

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