Question

What is the mass of a 5.00cm3 piece of copper having a density of 8.96g/cm3

Answer 1

Answer:

44.8 grams

Explanation:

The density exists as a ratio comparing the mass of a piece of copper per 1 cm³. Since you have been given a new volume, you can set up a proportion to find the new mass.

$\frac{8.96 grams}{1.00 cm^3} =\frac{?grams}{5.00cm^3}$                                         <----- Proportion

$44.8 = (1.00cm^3)(?grams)$                              <----- Cross-multiply

$44.8= ?grams$                                                 <----- Divide both sides by 1.00