How many ions are in 4.26 moles of Ammonium

Explanation:The formula for ammonium carbonate is (NH4) 2CO3

The molar mass of ammonium carbonate is 96.1 g/mole

51 g x 1 mole/96.1 g = 0.531 moles (NH4) 2CO3

There are TWO moles of NH4 + (ammonium ions) per 1 mole of ammonium carbonate, thus ...

Moles of ammonium ions = 0.531 moles (NH4) 2CO3 x 2 moles NH4+/mole (NH4) 2CO3 = 1.1 moles NH4 + ions (to 2 sig. figs.)