Calculate the molality of a solution that is made up of 250 g of water and 20 point 0 g of NaOH Use molality is equal to moles of solute over kilograms of solvent

NaOH has a molar mass of about 40.0 g/mol, so 20.0 g is 20.0 ÷ 40.0 = 0.500 mol. The 250 g of water is 0.250 kg. Molality = 0.500 mol ÷ 0.250 kg = 2.0 m, so the answer is A) 2.0 m.

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