20 g of common salt is dissolved in 180 g of water. What is the mass percentage of the salt in the solution?
- A.5%
- B.9%
- C.10%
- D.15%
Show answer
The mass of the solution is 20 g + 180 g = 200 g, and 20 g of salt in 200 g of solution is 10 per cent.
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