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.
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%.
To calculate the mass percent of the solute in each solution, we need to determine the mass of the solute (KCl) and the total mass of the solution.
First, let's find the mass of the solute (KCl), which is 29 g.
Next, calculate the total mass of the solution by adding the mass of the solute (KCl) and the mass of the solvent (H2O):
Total mass = mass of KCl + mass of H2O
Total mass = 29 g + 150 g
Total mass = 179 g
Now, let's calculate the mass percent using the formula:
Mass percent (m/m) = (mass of solute / total mass of solution) x 100
Substituting the given values:
Mass percent (m/m) = (29 g / 179 g) x 100
Calculating, we find:
Mass percent (m/m) = 16%
Therefore, the mass percent (m/m) of the solute (KCl) in the solution is approximately 16%.
To calculate the mass percent, you need to find the mass of the solute (KCl) and the total mass of the solution (KCl + H2O).
First, let's calculate the mass of the solute (KCl). Given that you have 29 g of KCl, the mass of the solute is 29 g.
Next, calculate the total mass of the solution by adding the mass of the solute (29 g KCl) to the mass of the solvent (150 g H2O):
Total mass of the solution = 29 g + 150 g = 179 g
Now, use the following formula to calculate the mass percent:
Mass Percent (%m/m) = (Mass of Solute / Total Mass of Solution) x 100
Mass percent (m/m) = (29 g / 179 g) x 100
Calculate it:
Mass percent (m/m) = (0.1620) x 100 = 16.2%
Therefore, the mass percent (m/m) for the solute KCl in the given solution is 16.2%.