Question

5 a piece of solid magnesium has a mass of 1300 g and a volume of 743 cm³. what is the density of the piece of magnesium? given work answer: 1.75g

Explanation:

Step1: Recall density formula

Density formula is $
ho = \frac{m}{V}$, where $
ho$ is density, $m$ is mass, $V$ is volume.

Step2: Identify given values

Mass $m = 1300\ \text{g}$, Volume $V = 743\ \text{cm}^3$.

Step3: Substitute into formula

$
ho=\frac{1300\ \text{g}}{743\ \text{cm}^3}\approx1.75\ \text{g/cm}^3$ (note: density unit should be $\text{g/cm}^3$, not just $\text{g}$ as in the original answer's unit, but the numerical value calculation is as above).

Answer:

The density of the magnesium piece is approximately $\boldsymbol{1.75\ \text{g/cm}^3}$ (calculated as $\frac{1300}{743}\approx1.75$ with units $\text{g/cm}^3$).