Question

One mole of \(\mathrm{CO}_{2}\) contains
(a) \(6.023 \times 10^{23}\) atoms of \(C\)
(b) \(6.023 \times 10^{23}\) atoms of \(\mathrm{O}\)
(c) \(18.1 \times 10^{23}\) molecules of \(\mathrm{CO}_{2}\)
(d) \(3 \mathrm{~g}\) atoms of \(\mathrm{CO}_{2}\)

Answer 1

(a) \(6.023 \times 10^{23}\) atoms of \(C\)
One mole of any substance contains Avogadro number of atoms. In this carbon one mole is present and oxygen two atoms are present. \(50,6.023 \times 10^{23}\) atoms of \(\mathrm{C}\) is correct.