Calculate the molarity of a solution prepared by dissolving 11.5 g naoh in enough water to make 1.5 l of solution.

Question

Butterball

Chemistry

9 October, 11:35

Calculate the molarity of a solution prepared by dissolving 11.5 g naoh in enough water to make 1.5 l of solution.

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Answers (1)

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Marie Grimes · Answer 1

Molar mass NaOH = 39.997 g/mol

Number of moles:

n = mass of solute / molar mass

n = 11.5 / 39.997

n = 0.287 moles

Therefore:

Molarity = moles solute / volume

Molarity = 0.287 / 1.5 = > 0.1913 M