Mixed 600 g of a 20% acid solution and 400 g of a 10% solution of the same acid. Find the percentage
| March 7, 2021 | education
Mixed 600 g of a 20% acid solution and 400 g of a 10% solution of the same acid. Find the percentage of acid in the resulting solution.
600 + 400 = 1000 (g) – the mass of the resulting mixture.
20% = 0.2; 10% = 0.1.
600 * 0.2 + 400 * 0.1 = 120 + 40 = 160 (g) is the mass of acid in the resulting mixture.
160/1000 = 0.16 = 16% – mass fraction of acid in the resulting mixture.
Answer: Mass fraction of acid in the resulting mixture – 16%.
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