.60 L .of 95 M solution of NaCl is allowed to evaporate until it has a volume of .25L What is the concentration of the new solution?

2.28 M

Explanation:

Using the formula as follows;

C1V1 = C2V2

Where;

C1 = initial concentration (M)

C2 = final concentration (M)

V1 = initial volume (L)

V2 = final volume (L)

According to the information given in this question;

C1 = 0.95M

C2 = ?

V1 = 0.60L

V2 = 0.25L

Using C1V1 = C2V2

0.95 × 0.60 = C2 × 0.25

0.57 = 0.25 C2

C2 = 0.57 ÷ 0.25

C2 = 2.28 M