We can use this formula for dilutions to find the new concentrationM₁v₁ = M₂v₂
We can use mL for volume as they will cancel out on both sides even though molarity is moles/liter
(6.0M)*(85mL)=(M₂)*(750mL)M₂ = 0.68
The concentration of a solution after you dilute it is 0.68 M.