Question

Calculate the number of molecules present in 22g of corbon dioxide

Answer 1

Answer:

N/2 molecules i.e. 3.011 × 10^23 molecules

Explanation:

No. of moles of Carbon dioxide = given mass/mol. mass = 22/44 = 0.5 mol

1 mol carbon dioxide contains 6.022×10^23 molecules

0.5 mol carbon dioxide contains 6.022 × 10^23 × 0.5 = 3.011 × 10^23 molecules = N/2 molecules

where, N = Avogadro No. = 6.022 × 10^23