To calculate the mass percent of the solute in a solution, we need to divide the mass of the solute by the mass of the entire solution and multiply by 100.
Given:
Mass of KCl = 29 g
Mass of H2O = 150 g
Total mass of the solution = Mass of KCl + Mass of H2O = 29 g + 150 g = 179 g
Mass percent of KCl = (Mass of KCl / Total mass of the solution) x 100
= (29 g / 179 g) x 100
≈ 16.2%
Therefore, the mass percent of KCl in the given solution is approximately 16.2%.
Calculate the mass percent, % (m/m), for the solute in each of the following solutions.
29 g of KCl and 150 g of H20
Express your answer using two significant figures.
1 answer