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A dilute bleach solution that is 5.00% by volume is prepared by mixing a portion of...

A dilute bleach solution that is 5.00% by volume is prepared by mixing a portion of liquid bleach with DI H2O (i.e. 5.00 mL bleach per 100 mL of solution was used to make the 5.00% solution). A 25.00 mL sample of this bleach solution is analyzed according to the procedure described in the lab. It is found that 24.70 mL of a 0.168 M solution of Na2S2O3 is needed to reach the stoichiometric endpoint of the titration. Calculate the mass percent \"available chlorine\" in the liquid bleach.

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