A is a solution containing 155.8g/dm3 of Na2S2O7, was obtained by dissolving 9g of an...
A is a solution containing 155.8g/dm3 of Na2S2O7, was obtained by dissolving 9g of an...
A is a solution containing 155.8g/dm3 of Na2S2O7, was obtained by dissolving 9g of an impure-sample of I2 in aqeous KI. And made up to 1dm3 using 25cm3of pipette, from your results. a.calculate concentration of A in mol/dm3. b.calculate concentration of I2 in mol/dm3. c.calculate percentage by mass of I2 in the sample. (average titre value=13.67cm3,I=137,Na=23,O=16,S=32). I2 2S2O3-2=2I- S4O6-2?
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Asked by Gande on 9th October, 2022
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