Question

The following process has been used to obtain iodine from oil-field drines in California. NaI+AgNO3→AgI+NaNO3 …(1) 2AgI+Fe→FeI2+2Ag…(2) 2FeI2+3Cl2→2FeCl3+2I2 …(3) How many grams of AgNO3 are required in the first step for every 1kgI2 produced in the third step?

Answer 1

Explanation:

The following process has been used to obtain iodine from oil-field brines:

NaI+AgNO3→AgI+NaNO3

2Agl+Fe→FeI2+2Ag

2Fel2+3Cl2→2FeCI3+2I2

If 324g of Ag is recovered in pure form, then the minimum amount of Nal required will be: 

A

450g

B

150g

C

315g this is the answer

D

600g

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