Question

QUANTITIES AND
F. Solve the following numerical problems.
1. Calculate the density of a solid of mass 20 kg if it occupies a volume of 4 m3.
2. The density of copper is 8.4 g/cm3. What will be the volume of 200 g of copper?

Answer 1

the above pic answer is of number 1.

2 number °C. The energy for vacancy formation is 0.9 eV/ atom; the atomic weight and density (at 1000 ° C) for copper are 63.5 g/mol and 8.4 g/cm. 3.