The iodide ion, usually consumed as potassium iodide, is a dietary mineral essential to good nutrition. in countries where potassium iodide is added to salt, iodine deficiency or goiter has been almost completely eliminated. the recommended daily allowance (rda) for iodine as 150 micrograms per day. how much potassium iodide (76.45% i) should you consume to meet the rda?

The question tell us that the requirement is 150 micrograms of iodine a day. Eating 150 micrograms of potassium iodide would not help because iodine would only be 76.45% of that sample. So we need to find a mass m, for which 76.45% is 150 micrograms:

[tex]\frac{76.45m}{100} =150*10^{-6}[/tex]

m = 196 micrograms of potassium iodide

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Histrionicus Histrionicus · Answer 2 · 2021-10-28T13:01:54+02:00

The recommended daily allowance RDA) for iodine as 150 micrograms per day. The amount of potassium iodide (76.45%) should you consume to meet the RDA - 0.196 milligrams.

Given:

100 grams of KI contain = 76.45 grams of I

So, 1 gram of I will be present in = 100/76.45 grams of KI

Solution:

150 µg grams of Iodine will be contained in

=> ([tex]\frac{100}{76.45}[/tex]) × 150 × [tex]10^{-6}[/tex]

=> = 0.196 milligrams of KI

Thus, the amount of potassium iodide (76.45%) should you consume to meet the RDA - 0.196 milligrams.

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