Question

How many ammonium ions, nh4 , are there in 5.0 mol (nh4)2s?

Answer 1

Answer: The number of ammonium ions in given moles of ammonium sulfide are
`6.022* 10^(24)`

Step-by-step explanation:

We are given:

A chemical compound having chemical formula of
`(NH_4)_2S`

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
`6.022* 10^(23)` number of atoms

So, 5 moles of ammonium sulfide molecule will contain =
`5* 2* 6.022* 10^(23)=6.022* 10^(24)` number of ammonium ions.

Hence, the number of ammonium ions in given moles of ammonium sulfide are
`6.022* 10^(24)`

Answer 2

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