5453g of dried thyroid gland is ignited with na2co3 this is


Question- 5453g of dried thyroid gland is ignited with Na2CO3, This is ioxidized withC15H11I4NO4 (FM 776.93).

I- + 3Br2 + 3H2O ------------> IO3- + 6Br- + 6H+

the excess Br2 is distroyed and treated with the excess KI

IO3- + 5I- + 6H+ --------------> 3I2 + 3H2O

The I2 is then titrated with 26.21 mL of .0928M (S2O3)^2-

I2 + (2S2O3)^2- ----------------> 2I2 + (S4O6)^2-

What is the % (w/w) of thyroxin in the gland?

Solve the above problem and provide steps with explanation

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Chemistry: 5453g of dried thyroid gland is ignited with na2co3 this is
Reference No:- TGS0969198

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