Question

Volume (at STP) of 5.2x10^26 molecules of CH4?

Answer 1

$6,02*10^{23} \ \ \ \rightarrow \ \ \ 22,4dm^{3}\\ 5,2*10^{26} \ \ \ \ \ \rightarrow \ \ \ V_{x}\\\\ V_{x}=\frac{5,2*10^{26}*22,4dm^{3}}{6,02*10^{23}}\approx 19,35*10^{3}dm^{3}=19350dm^{3}$