Four U tubes each have distilled water in the right arm a so

Four U tubes each have distilled water in the right arm, a solution in the left arm, and a semipermeable membrane between arms.

(a) If the solute was KCl, which solution was the most initially?

A

B

C

D

(b) If each solute is different but all the solutions have the same molarity, which contains the smallest number of dissolved ions?

A

B

C

D

Solution

a)

answer : B )

b)

answer :   C)

explanation:

in the tube B we can see one side higher concentration than the other it indicates KCl will have higher concentration in B

next

in C both side same level this means that there is no passages of ions from one end to other it is only possible when both side have same moalrity