Calculate the mass fraction (in percent) of hydrogen chloride in an acid solution containing 14.6
| September 12, 2021 | education
Calculate the mass fraction (in percent) of hydrogen chloride in an acid solution containing 14.6 g of HCI and 385.4 g of water.
Given:
m (substance) = 14.6 g,
m (water) = 385.4 g,
W -?
Solution:
The mass fraction of a substance is calculated by the formula:
W = m (substance): m (solution) × 100%,
m (solution) = m (substance) + m (water).
m (solution) = 14.6 g + 385.4 g = 400 g.
W = (14.6g: 400g) × 100% = 3.65%.
Answer: W = 3.65%.
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