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The species H3+ is the simplest polyatomic ion. The geometry of the ion is that of an equilateral triangle. Given the following information 2H + H+ → H3+ ΔHo = −849 kJ/mol H2 → 2H ΔHo = 436.4 kJ/molCalculate ΔH for H+ + H2 --> H3-

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Answer:

Explanation:

From the question, we know that;

2H+H^+ ----->H^3+, ∆H°=-849 kilojoule per mole --------------(1).

H2 --------------->2H, DH° = 436.6 kilojoule per mole ---------------(2).

Adding the equation (1) and equation (2) above gives another equation of reaction, which is;

H2 + H^+ --------------> H^3+ --------------------------------------------(3)

∆H° = [-(849) - (+436.4)] kilojoule per mole.

∆H°=[-(849) - 436.4] kilojoule per mole....

∆H= - 1,285.4 kilojoule per mole

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