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We are given that Ammonium sulfate is used in fertilizers to provide nitrogen for the soil.

As we know one mole of ammonium sulfate has $6.02×{10}^{23}$formula units.

Therefore $0.200$mole of ammonium sulfate has $0.2\mathrm{moles}×6.02×{10}^{23}=1.2×{10}^{23}\mathrm{units}$ .

We are given that Ammonium sulfate is used in fertilizers to provide nitrogen for the soil.

As we know one mole of ammonium sulfate contains eight mole of hydrogen atoms.

Therefore $0.100$mole of ammonium sulfate contains $0.100\mathrm{moles}×8×6.2×{10}^{23}=4.96×{10}^{23}\mathrm{atoms}$of hydrogen.

We are given that Ammonium sulfate is used in fertilizers to provide nitrogen for the soil.

As we know one mole of ammonium sulfate contains two mole of nitrogen atom.

Therefore, $7.4×{10}^{25}$atoms of nitrogen contains $7.4×{10}^{25}×\frac{1}{2}×\frac{1}{6.2×{10}^{23}}=59.7\mathrm{moles}$of ammonium sulfate.

We are given that Ammonium sulfate is used in fertilizers to provide nitrogen for the soil.

As we know , molar mass of $\mathrm{N}=14$, $\mathrm{H}=1$, $\mathrm{S}=32$, $\mathrm{O}=16$

According to formula molar mass of ammonium sulphate $\left(14×2\right)\mathrm{g}+\left(1×8\right)\mathrm{g}+\left(32×1\right)\mathrm{g}+\left(16×4\right)\mathrm{g}=132\mathrm{g}$