A common stain remover is sold in concentrated form as 3M sodium hypochlorite (NaOClNaOCl) You need to create 400 mms of a 0.5M solution of of sodium hypochlorite to fill a spray bottle. What volume of 3M sodium hypochlorite is needed?

1 Answer
Al E.
Nov 25, 2017

Approximately 66.7mL66.7mL of the concentrated bleach solution, diluted to 400mL400mL with water will produce the desired concentration for your cleaning pleasure.

Explanation:

We're given a desired volume and concentration, and a current concentration, to relate these variables, I'll use the equation,

M_1V_1 = M_2V_2M1V1=M2V2

Hence,

400mL * L/(10^3mL) * 0.5M = 3M * V_2400mL⋅L103mL⋅0.5M=3M⋅V2
therefore V_2 = 66.7mL

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