Question

calculate the density of an object, if the mass is 39 g and the volume is 71 ml.
density = \frac{mass}{volume}
remember to select an answer with the correct number of significant figures.
1.8 g/ml
0.55 g/ml
0.55 g
1.8 ml
i dont know yet

Explanation:

Step1: Identify the density formula

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

Step2: Substitute given values

Given $m = 39\ g$ and $V=71\ mL$. So $
ho=\frac{39\ g}{71\ mL}$.

Step3: Calculate the density

$
ho=\frac{39}{71}\ g/mL\approx0.55\ g/mL$

Answer:

B. $0.55\ g/mL$