Question

1. find the volume of an object with a density of 3.1 g/ml and a mass of 12 g

Explanation:

Step1: Recall density formula

The density formula is $
ho=\frac{m}{V}$, where $
ho$ is density, $m$ is mass and $V$ is volume. We need to solve for $V$. Rearranging the formula gives $V = \frac{m}{
ho}$.

Step2: Substitute values

Given $
ho = 3.1\ g/mL$ and $m = 12\ g$. Substitute these values into the formula $V=\frac{m}{
ho}$, so $V=\frac{12\ g}{3.1\ g/mL}$.

Step3: Calculate volume

$V=\frac{12}{3.1}\ mL\approx 3.87\ mL$.

Answer:

$3.87\ mL$