Question

how can we calculate mass by mass percentage of a solution mass by volume percentage of solution and volume by volume percentage of solution.​

Answer 1

Answer:

1.Convert the units (mass in grams, volume in mL): mass KCl = 45.0g. volume of solution = 2.0 L = 2.0 L × 103 mL/ L = 2000 mL.

2.Calculate w/v (%) w/v (%) = [mass solute (g) ÷ volume solution (mL)] × 100. Substitute in the values and solve: w/v (%) = [45.0 ÷ 2000 mL] × 100 = 2.25 g/100mL (%)

Answer 2

Answer:

1. Convert the units (mass in grams, volume in mL): mass KCl = 45.0g. volume of solution = 2.0 L = 2.0 L × 103 mL/ L = 2000 mL.

2. Calculate w/v (%) w/v (%) = [mass solute (g) ÷ volume solution (mL)] × 100. Substitute in the values and solve: w/v (%) = [45.0 ÷ 2000 mL] × 100 = 2.25 g/100mL (%).

Explanation:

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