Example $2$: How many grams of $N{H}_3$ are in $0\mathrm{.}0245$mol of $N{H}_3?$

$0\mathrm{.}0245(mol)N{H}_{}\frac{17\mathrm{.}03(g)NH}{1(mol)NH}=0\mathrm{.}417253g$~~$0\mathrm{.}417or4\mathrm{.}17{10}^{-1}gNHs$

Given the amounts of various compounds below, calculate the mass $($in $g)$ of each

$1\mathrm{.}2{10}^{-1}$mol ammonium sulfate, of $(N{H}_4{)}_{2}S{O}_4$

$9\mathrm{.}731$mmol cobalt$($III$)$ chloride, of $CoC{l}_3$

$12\mathrm{.}5$mol glucose, of $C_6{H}_{12}{O}_6$