Determine the percentage concentration of the solution formed by dissolving 140 g of acetic acid in 60 g of water.
| February 17, 2021 | education
Given:
m (substance) = 140g,
m (water) = 60 g,
W -?
Decision:
W = m (substance): m (solution) × 100%,
m (solution) = m (water) + m (substance).
m (solution) = 60 g + 140 g = 200 g.
W = (140g: 200g) × 100% = 70%.
Or:
200 g solution – 100%,
140 g of substance – x%,
x = 70%.
Answer: 70%.
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