Question

A solution contains 30 g of common salt in 300 g of water .The concentration in terms of mass by mass percentage of the solution is-

(a) 11.1%

(b) 9.09%

(c) 4.5%

(d) 11.7%

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Answer 1

Explanation:

mass of solute 30 gm

mass of solution 330 gm as 300 gm of solvent and 30 gm of solute

concentration in mass by mass = mass of solute /mass of solution * 100

= 30/330 x 100 %

= 9.09 %

therefore the concentration is 9.09 %

Answer 2

Answer:

9.09 is the correct answer

Explanation:

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