Question

Convert into mole of 20g of water.

Answer 1

Answer:

$\boxed{\text{Number of moles is approximately = 1.11 moles}}$

Explanation:

$\text{GMM of }H_2O = 2 + 16 = 18g\\\\\\\boxed{\text{Number of Moles (M)} = \frac{\text{Weight}}{\text{GMM}}}\\\\\\\text{Given Weight = 20g}\\\\M = \frac{20}{18}\\\\M = \frac{10}{9}\\\\M = 1.11... \text{ moles}\\\\\boxed{\text{Number of moles is approximately = 1.11 moles}}$

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Answer 2

Molar mass of H2O = 18g

No. of moles = given mass / molar mass

Moles (n) = 20/18

n = 1.11