Moles= 3.2933 moles
As, density= 0.988 g/mL
And Volume= 50 mL
Hence, mass= 50 × 0.988 = 49.4 grams
Now, moles = mass / molar mass
Molar mass of Water = 18 g/mol
Therefore, moles= 49.4/18 moles = 3.2933 moles
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