Mole ConceptHard

Question

If an iodized salt contains 1% of KI and a person takes 2 g of the salt every day, the iodine ions going into his body everyday would be approximately (K = 39, I = 127)

Options

A.7.2 × 1021
B.7.2 × 1019
C.3.6 × 1021
D.9.5 × 1019

Solution

Number of iodide ions =$\frac{0.02}{166} \times 6 \times 10^{23} = 7.23 \times 10^{19}$

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