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jcherry99
There are two such ions in every molecule
1 mol contains 6.02 * 10^23 things.
1 mol of (NH4)2S  contains 2*6.02 * 10^23 ions (of NH4+ in this case.) = 1.204 * 10^24 ions HN4+

5 mol of (NH4)2S contains 5 * 1.204*10^24 =
6.02 * 10^24 mols NH4+ions <<<<====Answer

Answer: The number of ammonium ions in given moles of ammonium sulfide are [tex]6.022\times 10^{24}[/tex]  

Explanation:

We are given:

A chemical compound having chemical formula of [tex](NH_4)_2S[/tex]

In 1 mole of ammonium sulfide, 2 moles of ammonium ions and 1 mole of sulfide ions are present.

According to mole concept:  

1 mole of compound contains [tex]6.022\times 10^{23}[/tex] number of atoms

So, 5 moles of ammonium sulfide molecule will contain = [tex]5\times 2\times 6.022\times 10^{23}=6.022\times 10^{24}[/tex] number of ammonium ions.

Hence, the number of ammonium ions in given moles of ammonium sulfide are [tex]6.022\times 10^{24}[/tex]

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