Question

find number of carbon atoms in 1.2 kg of Graphite

Answer 1

We know that Carbon has atomic mass equal to 12g, I. E. One mole of carbon atom weighs 12g. We know that one mole of any substance contains 6.0225X10^23particles(atoms, molecules, ions, etc.). Thus 12g of Carbon contains6.0225X10^23 atoms of Carbon.