Question

Number of moles in 63g of H2O are

(a) 3.25 moles (b) 3.45 moles

(c) 3.6 moles (d) 3.5 moles​

Answer 1

Answer:

$Molecular \: mass \: of \: H_2O \: is \: ( 1×2+ 16) = 18 g /mol \\ </p><p>18g = 1mol \\ </p><p>1 g = \frac{1}{18} mol \\ </p><p>63g = \frac{63}{18} \: mol \\ = 3.5 mol$

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Answer 2

Answer:

Number of moles in 63g of H2O are 3.5 moles