Question

Question #03c19

Answer 1

Avogadro's number: n= `6.022×10^23` molecules/mol.
2 mol, so 2xn...
6 H per molecule, therefore
6 H/molecule * n molecules/mol * 2 mol :

`rarr 6 * 6.022*10^23 * 2 = 7.23*10^24` H-atoms (give or take a few million)