Explanation:
The given formula of the compound is [tex](NH_{4})_{2}SO{4}[/tex]
The formula says
Every mole of [tex](NH_{4})_{2}SO{4}[/tex] contains [tex]8[/tex] moles of atoms of hydrogen.
Given that number of moles of compound is [tex]0.56[/tex]
So,the number of moles of hydrogen atoms present is [tex]0.56\times 8=4.48[/tex]
Since each mole has [tex]6.022\times 10^{23}[/tex] atoms,
[tex]4.48[/tex] moles has [tex]4.48\times 6.022\times 10^{23}=2.7\times 10^{24}[/tex] atoms.
