### Explain what is the mass percent of no2- ion in the sample

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##### Reference no: EM13500776

When a nitrite containing sample with a mass of 3.000 g was analyzed, 16.65 mL of 0.1500 M Na2S2O3 solution was required to completely titrate the sample. What is the mass percent of NO2- ion in the sample? How would you go about solving this problem?

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