Question

Calculate the number of hydrogen atoms in 39.6 g of ammonium sulfate, (NH4)2SO4.

Answer 1

Here is the Answer
Hope it helps

Answer 2

Answer: $14.45\times 10^{23}atoms$

Explanation:

Moles can be calculated by using the formula:

$\text{no of moles}=\frac{\text{given mass}}{\text{Molecular mass}}$

$\text{no of moles}=\frac{39.6g}{132.14g/mol}=0.30moles$

1 mole of $(NH_4)_2SO_4$ contains= $8\times 6.023\times 10^{23} atoms=48.18\times 10^{23}atoms$

0.30 moles of $(NH_4)_2SO_4$ contain= $\frac{48.18\times 10^{23}}{1}\times 0.30=14.45\times 10^{23}atoms$