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A student dissolves 3.7g of biphenyl C12H10 in 500.mL of a solvent with a density of...

A student dissolves 3.7g of biphenyl C12H10 in 500.mL of a solvent with a density of 0.91/gmL. The student notices that the volume of the solvent does not change when the biphenyl dissolves in it. Calculate the molarity and molality of the student's solution. Be sure each of your answer entries has the correct number of significant digits.

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