Question

The density for manganese is 7.47 g/cm3. What would be the mass of a 30 cm3 piece of manganese?
448.2g
4.02g
224.1g
222g

Answer 1

Denstiy formula,
\[\rho =\frac{m}{V}\]
\[m=\rho V\]
\[m=(7.47)(30)=224.1g\]

Answer 2

Thank you!