calculate the volume of a solvent from a solution that has a density of 18 mg/l and a solvent that weighs…

Explanation:

Step1: Recall density - mass - volume formula

The formula for density $\rho=\frac{m}{V}$, where $\rho$ is density, $m$ is mass, and $V$ is volume. We want to find the volume $V$, so we can re - arrange the formula to $V = \frac{m}{\rho}$.

Step2: Identify given values

The mass of the solvent $m = 3.7$ mg and the density of the solvent $\rho=18$ mg/L.

Step3: Calculate the volume

Substitute the values into the formula: $V=\frac{3.7\text{ mg}}{18\text{ mg/L}}\approx0.206$ L.

Answer:

$0.206$ L