Question

A solution of ammonia and water contains 3.10×1025 water molecules and 7.10×1024 ammonia molecules. How many total hydrogen atoms are in this solution?

Answer 1

Hydrogen atoms =
`8.33*10^(25)`

Step-by-step explanation:

`H_(2)O = 3.10*10^(25)` molecules

`NH_(3)=7.10*10^(24)` molecules

1 water molecule has 2 hydrogen atoms

1 ammonia molecule has 3 hydrogen atoms

Hydrogen atoms = 2*(water molecules) + 3(ammonia molecules)

Hydrogen atoms =
`2* 3.10*10^(25) + 3*7.10*10^(24)= 8.33*10^(25)`