Answer
7.13 g
Work Step by Step
We have the formula for density, $\rho$
$$\rho=\frac{m}{V}$$
where $m=mass$ and $V=volume$. Rearranging this formula to solve for $m$, we now have
$$m=\rho V$$
Substituting,
$$m=(0.713 \frac{g}{mL})(10.0 mL)$$
$$m=7.13 g$$
