In 150 grams of water, 20 grams of hydrochloric acid was poured. What is the concentration of the solution?

univerkov | September 25, 2021 | education

Given:
m (H2O) = 150 g
m (HCl) = 20 g

Find:
ω (HCl) -?

Solution:
1) m solution (HCl) = m (HCl) + m (H2O) = 20 + 150 = 170 g;
2) ω (HCl) = m (HCl) * 100% / m solution (HCl) = 20 * 100% / 170 = 11.76%.

Answer: Mass fraction of HCl is 11.76%.

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