Answer:
1.375 M
Explanation:
Using the formula as follows;
C1V1 = C2V2
Where;
C1 = initial concentration/molarity (M)
V1 = initial volume (L)
C2 = final concentration/molarity (M)
V2 = final volume (L)
According to the information in this question;
C1 = 8.25 M
C2 = ?
V1 = 125 mL = 125/1000 = 0.125L
V2 = 750 mL = 750/1000 = 0.750L
Using C1V1 = C2V2
8.25 × 0.125 = C2 × 0.750
1.03125 = 0.750C2
C2 = 1.03125 ÷ 0.750
C2 = 1.375 M
