Answer quick
what is the percentage by mass of the solution formed when 22.0 grams of hcl is dissolved in 90.0 grams of water?

24.4%
22.48%
19.6%
16.7%

The equation to find the percentage by mass of a solution is:

(Mass of solute/mass of solution) x 100 = percentage by mass

So, let's identify the variables.

Mass of solute: 22g

Mass of solution: 112g

The reason that the solution is 112g and not 90g is because the solution needs to include the mass of the solute and solvent, meaning 90 + 22 is the mass of the solution.

(22/112) x 100 = 19.6%

um i think it might be a car?