There are 6.33 × 10²⁵ hydrogen atoms in this solution in total.
Explanation
- There are two hydrogen atoms in each water [tex]\text{H}_2\text{O}[/tex] molecule.
- There are three hydrogen atoms in each ammonia [tex]\text{NH}_3[/tex] molecule.
2.10 × 10²⁵ water molecules and 7.10 × 10²⁴ ammonia molecules will contain
[tex]2 \times 2.10 \times 10^{25} + 3 \times 7.10 \times 10^{24} = 6.33 \times 10^{25}[/tex] hydrogen atoms in total.
