What is the mass fraction of salt in the solution obtained by mixing 1 kg of an 11% solution with 3 kg of a 15% solution of this salt?
| May 28, 2020 | Education
ω = m (substance) / m (solution), whence:
ω = (1000 * 0.11 + 3000 * 0.15) * 100 / (1000 + 3000) = 14%
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