Recall the following:
[tex]\text{Density}=\frac{\text{Mass}}{\text{Volume}}\text{.}[/tex]Solving the above equation for Mass and Volume, we get:
[tex]\begin{gathered} Volume=\frac{\text{Mass}}{\text{Density}}, \\ \text{Mass}=\text{Density}\cdot\text{Volume.} \end{gathered}[/tex]Therefore, if Density= 13.6 g/mL, and Volume=8.20 mL, then
[tex]\text{Mass}=13.6\times8.20\text{ g = 111.52 g.}[/tex]If Mass=120 g, then:
[tex]\text{Volume}=\frac{120}{13.6}\text{ mL}\approx8.82\text{ mL.}[/tex]Answer:
a) 111.52 g.
b) 8.82 mL.
