Question

a block of aluminum occupies a volume of 15.0 ml and weighs 40.5 g. what is the density of aluminum?
a 1.50 g/ml
b 4.50 g/ml
c 2.70 g/ml
d 3.00 g/ml

Explanation:

Step1: Recall density formula

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

Step2: Identify given values

$m = 40.5$ g, $V=15.0$ mL.

Step3: Calculate density

$
ho=\frac{40.5}{15.0}=2.70$ g/mL

Answer:

C. 2.70 g/mL