In 200 ml of water was dissolved 50 l of hydrogen chloride HCL. What is the mass fraction (%) of HCL in this solution?

univerkov | December 10, 2020 | education

n (HCl) = 50: 22.4 = 2.23 mol
200 ml of water has a mass of 200 g
m (HCl) = 2.23 * 36.5 = 81.5 g
mass fraction of hydrochloric acid = 81.5 / (81.5 + 200) = 0.29
answer 29%

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