Question

A concentrated stock solution of 12M NaOH is available. We like to make 125 mL of a 5.5M NaOH
solution. What volume (in mL) of 12M NaOH and what volume (in mL) of water should we use to
make this diluted 5.5M NaOH solution?

Answer 1

V, M, = VM. vt initial volume Mit initial Molarity V t volume after M2 + Molarity after dilution dilution V,=? M = UUM V₂ = 125 ml M2 = 5.5M (v) (10m) = (125 ml) (5:54) via (125m2) (5:54) (12M) V = 57.29166 me volume of water added = V, V, = 125ml - 57.29166 ml - 67.70833ml.