If 33.6 grams of KCl are dissolved in 192 grams of water, what is the concentration of the solution in percent by mass?
21.2% KCl
17.5% KCl
14.9% KCl
5.71% KCl
The answer is 17.5% KCl correct?
21.2% KCl
17.5% KCl
14.9% KCl
5.71% KCl
The answer is 17.5% KCl correct?

i'm assuming we are looking for % m/m?
33.5g / 225.6g x 100% = 14.8%
you are looking for % of KCl in the solution, you have to add the mass of the KCl and water to get the total mass of the solution
33.5g / 225.6g x 100% = 14.8%
you are looking for % of KCl in the solution, you have to add the mass of the KCl and water to get the total mass of the solution