DonnetteOrone45 DonnetteOrone45

28-05-2015
Chemistry

Answered

22 At 101.3 kPa and 298 K, a 1.0-mole sample of which compound absorbs the greatest amount of heat as the entire sample dissolves in water?(1) LiBr (3) NaOH
(2) NaCl (4) NH4Cl

Answer :

lulu1991 lulu1991

07-06-2015

The answer is (4) NH4Cl. According to the chemistry reference table, the (1)LiBr and (3) NaOH will release heat when dissolves. And (2)NaCl will nearly not release or absorb heat. (4)NH4Cl will absorb heat.

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