Mass fraction (%) of salt in a solution containing 50 g of salt and 200 g of water is
| October 14, 2021 | education
Given:
m (H2O) = 200 g;
m (salt) = 50 g.
Find:
W =?
Solution:
1) The formula for solving the problem: W = (m substance: m solution) x 100%.
2) m solution = m solute + m solvent;
m solution = 50 g + 200 g = 250 g.
3) Substitute the values: W = (50 g: 250 g) x 100% = 20%.
Answer: W = 20%
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