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w History Bookmarks Window Help com or Free in HD Verify your Apple ID.-davisg.scott 207@gmail.com Durham Technical Community College-CHM 151 9 Jump to... 2/14/2018 12:00 PM O 0.3/52/12/2018 02:07 PM Gradebook -Print Calculator Penooc Table Question 6 of 16 General Chemistry 4th Edtico Map University Science Books iresented by Sapling Leamng lodine is prepared bolhinthe laboratory and commercially by adding(g) to an aquous sold n containing sodium iodide: How many grams of sodium iodide, Nal, must be used to produce 55.2 g of iodine, 127 Number g Nal 4,552

Explanation / Answer

1)

let x gram of NaI required to produce 55.2 g I2.

Molar mass of NaI = 149.9 g mol-1
Molar mass of I2= 253. 8 g mol-1
And number of moles = mass / molar mass

Now as we can seen from the equation,

(X g/149.9 g mol-1)/2 mol of NaI gives = (55.2 g/253.8 g mol-1)/1 moles of I2

So, x =(55.2 g/253.8 g mol-1) * (2/1) * 149.9 gmol-1

x = 65.20 g

So, 65.20 g of NaI require to produce the given amount of I2.

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