Question

What is the mass in grams of 16.86 mL of acetone?Express your answer to four significant figures and include the appropriate units.What is the volume in milliliters of 7.06 g of acetone?Express your answer to three significant figures and include the appropriate units.

Answer 1

Answer: Acetone has the following density,

$784\operatorname{kg}/m^3$

Therefore we have:

$\begin{gathered} 16.86ml=10^{-6}m^3 \\ m=\frac{(784kg)}{m^3}\times10^{-6}m^3=0.000784kg \\ \therefore\rightarrow \\ m=0.784\cdot1000\text{grams}=13.21824g \end{gathered}$