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A 1.00 mL sample of pool "chlorine" (NaClO, density = 1.18g/mL) required 21.12 mL of 0.150...

A 1.00 mL sample of pool "chlorine" (NaClO, density = 1.18g/mL) required 21.12 mL of 0.150 M Na2S2O3 to titrate it to the endpoint using the iodometric technique. What was the molarity and percent of sodium hypochlorite in the pool chlorine?

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