Activities and Due Dates ) HW 6 Assignment Score: 1467/2000 Resources [ Give Up? Question 20...

Question

Question

Answer 1

Answer #1

Lets number the reaction as 1, 2, 3, 4, 5 from top to bottom

required reaction should be written in terms of other reaction

This is Hess Law

required reaction can be written as:

reaction 5 = +1 * (reaction 1) +6 * (reaction 2) +3 * (reaction 3) -2 * (reaction 4)

So, ΔHo rxn for required reaction will be:

ΔHo rxn = +1 * ΔHo rxn(reaction 1) +6 * ΔHo rxn(reaction 2) +3 * ΔHo rxn(reaction 3) -2 * ΔHo rxn(reaction 4)

= +1 * (-646.0) +6 * (-74.8) +3 * (-1845.0) -2 * (-273.0)

= -6083.8 KJ

Answer: -6083.8 KJ

Answer 2

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