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Consider that you prepared a solution by mixing 0.15 g solute with 7.59 g of solvent....

Consider that you prepared a solution by mixing 0.15 g solute with 7.59 g of solvent. If you measured that the solution had a molality of 0.164 m, what is the molar mass of the solute? Express your answer numerically to three significant figures.

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Answer #1

Molality= moles of the solute/ mass of the solvent in Kg

Moles of the solute=0.164 m* 7.59*10-3 Kg =0.00124476 moles

Molar mass= mass/ number of moles

Molar mass= 0.15 g/ 0.00124476 moles = 121 g/mol

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