Answer:
1.4% salt residue
Explanation:
Mass percent can be found using the formula:
mass of solute (grams)
------------------------------------ x 100%
mass of solution (grams)
Therefore, since you have been given the weights of both the solute and solution, you can use the formula to solve for the mass percent.
3.50 g salt residue
----------------------------- = 0.014 x 100% = 1.4% salt residue
250 g salt solution
