Question

Q. 3 890 g of copper is mixed with zinc to form brass. The density of copper is 8.9 g/cm3 .What is the volume of copper used to make brass?  ​

Answer 1

Answer:

Noun form of the verb require

Answer 2

Answer:

100 cm³

Explanation:

Density ρ is equal to mass m per unit volume v, or

ρ = m / v

Solve for volume:

v = m / ρ

890 g of copper, which has a density of 8.9 g/cm³, has a volume of

v = (890 g) / (8.9 g/cm³) = 100 cm³

100 g of zinc, with density 7.1 g/cm³, has a volume of

v = (100 g) / (7.1 g/cm³) ≈ 14.08 cm³

Thanks!