A common stain remover is sold in concentrated form as 3M sodium hypochlorite (#NaOCl#) 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
Nov 25, 2017

Answer:

Approximately #66.7mL# of the concentrated bleach solution, diluted to #400mL# 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_2#

Hence,

#400mL * L/(10^3mL) * 0.5M = 3M * V_2#
#therefore V_2 = 66.7mL#