Question

1. if the density of 45.0 cm³ block of wood is 0.65 g/ml calculate the woods mass.

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: Identify values

We are given that $
ho = 0.65\ g/ml$ and $V=45.0\ cm^{3}$. Since $1\ cm^{3}=1\ ml$, $V = 45.0\ ml$.

Step3: Calculate mass

Substitute the values into the formula $m=
ho\times V$. So $m=0.65\ g/ml\times45.0\ ml$.
$m = 29.25\ g$

Answer:

$29.25\ g$