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What is the molality of 35 g acetone dissolved in 0.95 kg water? The molar mass of acetone is 58.1 g/mol.

Sagot :

The molality of 35 g acetone dissolved in 0.95 kg water is 0. 63 mol/kg

How to determine the molality

Using the formula:

Molality = number of moles of solute÷ mass of solvent

Note that number of moles = mass divided by the molar mass

mass of acetone = 35g

Molar mass of acetone = 58. 1g/mol

Number of moles of acetone = 35÷ 58.1 = 0.602 mole

Molality of acetone = 0. 602÷ 0. 95 = 0. 63 mol/kg

Hence, the molality of acetone is 0. 63 mol/kg

Learn more about molality here:

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