Question

what is the volume in milliliters of 7.18 g of acetone? express your answer to three significant figures and include the appropriate units. v = value units

Explanation:

Step1: Recall density - mass - volume formula

The density formula is $
ho=\frac{m}{V}$, where $
ho$ is density, $m$ is mass and $V$ is volume. Rearranging for volume gives $V = \frac{m}{
ho}$. The density of acetone is $
ho=0.7857\ g/mL$.

Step2: Substitute values

We know $m = 7.18\ g$ and $
ho=0.7857\ g/mL$. Substituting into the volume formula $V=\frac{m}{
ho}$, we get $V=\frac{7.18\ g}{0.7857\ g/mL}$.

Step3: Calculate volume

$V=\frac{7.18}{0.7857}\ mL\approx9.14\ mL$

Answer:

$9.14\ mL$