Question

If the Density of an object is 5.2 g/cm 3 , and its volume is 3.7 cm 3 , what is its mass?

Answer 1

19,24g
take density x volume

Answer 2

Answer: mass = 19 grams

Explanation: Density is directly proportional to mass and indirectly proportional to the volume. So, the density formula is:

$density=\frac{mass}{volume}$

density and volume are given and the question asks to calculate the mass. So, the formula could be rearranged as:

mass = density x volume

Given density is $\frac{5.2g}{cm^3}$ and the volume is $3.7cm^3$ .

Let's plug in the values in the formula to calculate the mass:

mass = $\frac{5.2g}{cm^3}*3.7cm^3$

mass = 19.24 grams

Both the density and volume have two sig figs, so if the answer is round off to correct number of sig figs then the mass will be 19 grams.