Calculate the molarity of pure water (density of water = 1 g mL-1 ). – InterviewSolution

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1.

Calculate the molarity of pure water (density of water = 1 g mL-1 ).

Answer»

Density of water = 1 g mL^-1

Mass of 1000 mL of water = Volume x Density

1000 x 1 = 1000 g

Moles of water = 1000/18 = 55.55

Now, 55.55 moles of H₂O are present in 1000 ml or 1L of water. Therefore Molarity = 55.55 M.

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