Question

Calcula o numero de moleculas CO₂ existente em 1,25 moles dessa substancia .

Answer 1

$1 mol (CO_2)= 12+16+16=44g\\\\1 mol \rightarrow 6,02\cdot10^2^3\\\\1,25 \rightarrow n\\\\n=6,02\cdot10^2^3 \cdot 1,25=7,53\cdot10^2^3$