Question

A solute contains 30 g of common salt in 330 g of water. Calculate the concentration in terms of mass by mass percentage of the solution.

Answer 1

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Answer 2

Given : A solution contains 30 g of common salt in 330 g of water.

　

To find : Calculate the concentration of solution?

　

Applying formula :

1) Mass of solution = Mass of solute + Mass of solvent.

2) Mass percentage = Mass of solute/Mass of solution × 100.

　

Calculations :

→ Mass of solution = 30 + 330

→ Mass of solution = 360

　

→ Mass percentage = 30/360 × 100

→ Mass percentage = 0.0833 × 100

→ Mass percentage = 8.33%

　

Therefore, 8.33% is the mass percentage of the solution.