Answer:
[tex]\boxed{\text{57.7 g} }[/tex]
Explanation:
The first step is to calculate the molar mass of H₂O:
[tex]\begin{array}{rcr}\text{2 H} & = & 2.02\\\text{1 O} & = & 16.00\\\text{TOTAL} & = & \mathbf{18.02}\\\end{array}[/tex]
So, 1 mol has a mass of 18.02 g.
Next you calculate the mass of 3.2 mol of H₂O
[tex]\begin{array}{rcl}m & = & \text{3.2 mol H$_{2}$O} \times \dfrac{\text{18.02 g H$_{2}$O}}{\text{1 mol H$_{2}$O}}\\ & = &\boxed{\textbf{57.7 g H$_{2}$O}} \\\end{array}[/tex]
