Calculate the weight of sodium hypochlorite

Reference no: EM13171199

From the concentration and volume of the added Na2S2O3 solution used to titrate each unknown bleach sample,
calculate the weight of sodium hypochlorite, NaOCl.

Given:
- Volume of Na2S2O3 added was 18.5 mL
- Concentration of Na2S2O3 was 1.0 M
- mass of unknown bleach was 0.7152 g

Additional info:

HOCl (aq) + 2(S2O3)2- (aq) + H+ (aq) --> Cl2(aq) + (S4O6)2- (aq) + H2O(l)

Reference no: EM13171199

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