Final answer:
The percentage by mass of the solution when 22.0 grams of HCl is dissolved in 110.0 grams of water is 16.7%.
Step-by-step explanation:
To calculate the percentage by mass of the solution, we need to first calculate the mass of the solution.
Mass of HCl = 22.0 grams
Mass of water = 110.0 grams
Total mass of solution = Mass of HCl + Mass of water = 22.0 grams + 110.0 grams = 132.0 grams
Next, we can calculate the percentage by mass of HCl in the solution.
Percentage by mass of HCl = (Mass of HCl / Total mass of solution) x 100%
Percentage by mass of HCl = (22.0 grams / 132.0 grams) x 100% = 16.7%
Therefore, the correct answer is D. 16.7%.