Determine the mass of potassium hydroxide in a 0.5 L solution with a mass fraction of potassium
| September 3, 2021 | education
Determine the mass of potassium hydroxide in a 0.5 L solution with a mass fraction of potassium hydroxide of 10%. The density of the solution is 1.092 g / cm3
1. Let’s calculate the mass of the solution, knowing its volume and density:
m (solution) = ρ * V (solution);
m (solution) = 1.092 * 500 = 546 g;
2.determine the mass of potassium hydroxide in solution:
m (KOH) = w (KOH) * m (solution);
m (KOH) = 0.1 * 546 = 54.6 g.
Answer: 54.6 g.
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