Question #e273b

1 Answer
Ernest Z.
Dec 31, 2016

The reaction formed 9.96 mol of "HI".

Explanation:

You have the equation

"H"_2 + "I"_2 → "2HI"; ΔH "= 264 kJ"

If Δ_"f"H for "HI" is 26.5 kJ/mol, then

"Amount of HI" =264 color(red)(cancel(color(black)("kJ"))) × "1 mol HI"/(26.5 color(red)(cancel(color(black)("kJ")))) = "9.96 mol HI"

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