Final answer:
Each formula unit of ammonium carbonate ((NH4)2CO3) contains eight hydrogen atoms, as there are two ammonium ions, each with four hydrogen atoms.
Step-by-step explanation:
The chemical formula for ammonium carbonate is (NH4)2CO3. This indicates that there are two ammonium (NH4+) ions in each formula unit. From the provided reference, we are reminded that an ammonium ion, NH4+, consists of one nitrogen atom bonded to four hydrogen atoms. Therefore, to find the total number of hydrogen atoms in each formula unit of ammonium carbonate, you would multiply the number of hydrogen atoms in a single ammonium ion (which is 4) by the number of ammonium ions present in the formula unit (which is 2).
So, using this information:
1 ammonium ion (NH4+) × 4 atoms H = 4 atoms H
2 ammonium ions (NH4+) × 4 atoms H each = 8 atoms H total.
Thus, there are eight hydrogen atoms in each formula unit of ammonium carbonate.