9. if the density of 45.0 cm³ block of wood is 0.65 g/ml calculate the woods mass.
9. if the density of 45.0 cm³ block of wood is 0.65 g/ml calculate the woods mass.
Answer
Explanation:
Step1: Recall density formula
The density formula is $\rho=\frac{m}{V}$, where $\rho$ is density, $m$ is mass and $V$ is volume. We need to solve for $m$, so we can re - arrange the formula to $m = \rho\times V$.
Step2: Identify values
We are given that $\rho = 0.65\ g/ml$ 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 $m=\rho\times V$. So $m=0.65\ g/ml\times45.0\ ml$. $m = 29.25\ g$
Answer:
$29.25\ g$