Question

Which of the following solution contain more water? A) 0.25M (B) 0.5 M (C) 1.5 M (D) 2.5 M​

Answer 1

Answer:

For a mixture of solution,

M

f

×V

f

=M

1

V

1

+M

2

V

2

+M

3

V

3

+...

Given: V

1

=50mL,M

1

=0.5M,V

2

=150mL,M

2

=0.25M,V

f

=250mL

M

f

×250=0.5×50+0.25×150

M

f

=0.25M

Hence, option D is correct.

Answer 2

Answer:

A 0.25M

Explanation:

molarity is the concentration of a solution. the higher the conc, the higher the molarity.

when you add water to a solution, it becomes dilute, thus reducing the concentration and molarity.

therefore, A. 0.25M is the answer because it is the least concentrated, and hence contains the most water