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QUESTION

According to the following reaction, how many grams of hydrogen iodide will be formed upon the complete reaction of 33.0 grams of iodine with excess hydrogen gas? hydrogen (g) + iodine (s) hydrogen iodide (g)

33.26 g of HI will be formed.

33.26 g of HI will be formed.

H_(2(g))+I_(2(g))rarr2HI_((g))

1mol + 1mol rarr 2mol

Using approximate A_r values:

(2xx127)gI_2rarr2(1+127)gHI

So:

254grarr256g

So:

1grarr256/254g

So:

33.0grarr(256)/(254)xx33.0= 33.26g