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General Chemistry Principles, Patterns, and Applications, 2011

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Hydrazine:<br />

ΔH comb = −573 kJ/mol or −17.9 kJ/ml<br />

Methanol (CH 3 OH):<br />

ΔH comb = −1286 kJ/mol or –15.9 kJ/ml<br />

Hydrazine is both extremely toxic <strong>and</strong> potentially explosive.<br />

7.<br />

a. ClO + NO 2 → ClONO 2<br />

b.<br />

Both reactants have one unpaired electron, which makes them more reactive than might otherwise be expected.<br />

ClONO 2 + H 2 O → HClO + HONO 2<br />

c.<br />

d. Water is acting as a Lewis base, as well as a Brønsted–Lowry acid. A lone pair on oxygen is<br />

used to attack the N atom of chlorine nitrate, <strong>and</strong> an H + of water is transferred to the ClO − .<br />

Chlorine nitrate acts as a Lewis acid, <strong>and</strong> OH − is transferred to NO 2 + , which acts as both a Lewis<br />

<strong>and</strong> a Brønsted–Lowry acid.<br />

Saylor URL: http://www.saylor.org/books<br />

Saylor.org<br />

765

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