Chemistry
Grade-7
Easy
Question
If a solution contains 55 g of common salt in 500 g of water, the mass percentage will be
- 10 gm
- 11 gm
- 13 gm
- 15 gm
Hint:
10 gm
The correct answer is: 10 gm
Given that the mass of the solute (common salt) is 55 g in 500 g solvent (water)
Mass of solution = solute mass + solvent mass = 55 + 500 = 555 g
Mass percentage of solution =Solute mass/Solute mass * 100 =(55/555)*100=9.9% = 10 gm.
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