Question

part a
what is the mass in grams of 18.26 ml of acetone?
express your answer to four significant figures and include the appropriate units.
mass = value units
submit request answer

Explanation:

Step1: Recall density formula

The density formula is $
ho=\frac{m}{V}$, where $
ho$ is density, $m$ is mass and $V$ is volume. Rearranging for mass gives $m =
ho V$. The density of acetone is approximately $
ho=0.7845\ g/mL$.

Step2: Substitute values

We know $V = 18.26\ mL$ and $
ho=0.7845\ g/mL$. Substitute into $m=
ho V$: $m=(0.7845\ g/mL)\times(18.26\ mL)$.

Step3: Calculate mass

$m=(0.7845)\times(18.26)=14.32597\ g$.

Step4: Round to significant figures

Rounding $14.32597\ g$ to four - significant figures gives $14.33\ g$.

Answer:

$14.33\ g$