Question

B.the number of carbon atoms in 12 mg of his homework writing. ( Ans : 6.022×1020)

Answer 1

Explanation:

12 mg=12×10^-3 g

number of mole

=12×10^-3÷12=0.001 mol

number of atom =0.001×6.022×10^23

=6.022×10^20