Answer:
V₂ = 2.8 L
Explanation:
Given data:
Initial volume = 800 mL ( 800/1000 = 0.8 L)
Initial molarity = 4.2 M
Final volume = ?
Final molarity = 1.2 M
Solution:
Formula:
M₁V₁ = M₂V₂
M₁ = Initial molarity
V₁ = Initial volume
M₂ = Final molarity
V₂= Final volume
M₁V₁ = M₂V₂
4.2 M × 0.8 L = 1.2 M× V₂
3.36 M.L = 1.2 M× V₂
V₂ = 3.36 M.L/1.2 M
V₂ = 2.8 L
