The number of moles of $SO_2Cl_2$ in $13.5 \ g$ is

What is the total number of electrons present in $18 \ mL$ of water?

In a flask, the weight ratio of $CH_{4(g)}$ and $SO_{2(g)}$ at $298 \ K$ and $1 \ bar$ is $1:2$. The ratio of the number of molecules of $SO_{2(g)}$ and $CH_{4(g)}$ is

What is the approximate weight of one molecule of methane $(CH_4)$?

The number of atoms in $0.1 \ mol$ of a triatomic gas is $(N_A = 6.02 \times 10^{23} \ mol^{-1})$

Calculate the number of molecules present in $5.4 \ g$ of urea (Molar mass of urea $= 60 \ g \ mol^{-1}$).