Question

Students were asked to prepare 12% solution of KCl. Reena added 12 g of

salt in 100 g of water and Siya added 12 g of salt in 88 g of water. Who

prepared a solution of required concentration?​

Answer 1

Answer:

Explanation:

(a) No, the two solutions donot have same concentration

(b) In the solution prepared by Rahul,

Mass of salt = 10 g

Mass of solution = (100 + 10) g.

Mass percentage of salt = (10g)(110g)×100=9.09%

In the solution prepared by Priya, Mass of salt = 10 g

Mass of solution = 100 g

Mass percentage of salt = (10g)(100g)×100=10%

(c ) The measurements made by Priya are correct.