Question

An object has a density of 7.8 g/cm3 and a volume of 9 cm? What is the mass of the object?

Answer 1

70.2 grams

Step-by-step explanation:

The formula for density is p = m/V.

Here, p (density) and V (volume) are already given.

So, modify the formula to: m = pV.

p is 7.8 g/cm³, and V is 9 cm³.

m = 39/5 * 9/1

m = 351/5

m = 70.2 grams

The mass of the object is 70.2 grams.