How materials is dissolved and neutralized

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Reference no: EM13488891

A 2.50 g sample containing As2O5, NA2HAsO3, and other materials is dissolved and neutralized. The As(III) is fully titrated by (oxidized by) 11.3 mL of 0.150M I2. All the arsenic present is now in the +5 state. Excess KI is added. Reducing all the As (V) to As (III), the liberated I2 is fully titrated by 41.2 mL of .120 M Na2S2O3. calculate the mass percent of both AsO5 and Na2HAsO3 in the sample.

Reference no: EM13488891

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