Question

a silver necklace has a density of 10.5 g/ml and a volume of 1.5 ml. what is the mass of the silver necklace?

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 $m$, so we can re - arrange the formula to $m=
ho\times V$.

Step2: Substitute given values

Given $
ho = 10.5\ g/mL$ and $V=1.5\ mL$. Then $m=(10.5\ g/mL)\times(1.5\ mL)$.

Step3: Calculate the mass

$m = 10.5\times1.5=15.75\ g$.

Answer:

$15.75\ g$