Question

What is the mass of 0.25 moles of water? O 0.25 g 4.5 g 18 g 72g

Answer 1

Answer:

4.5 g

Explanation:

The mass of 1 mol of water is 18.02 g.

$\text{Mass of H _{2} O} = \text{0.25 mol H _{2} O} \times \dfrac{\text{18.02 g H _{2} O}}{\text{1 mol H _{2} O}} = \textbf{4.5 g H _{2} O}$