Question

What volume (in ml) of 0.8 M $AlC{l}_3$ solution should be mixed with 50 ml of 0.2M $CaC{l}_2$ solution to get solution of chloride ion concentration equal to 0.6 M?

• A. 5.56 ml
• B. 100 ml
• C. 50 ml
• D. 4.89 ml

Answer 1

Answer: (A)

5.56 ml

V × 0.8 × 3 + 50 × 0.2 × 2 = (V + 50) × 0.6

⇒ V = 5.56 ml

Option A is correct.