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Topic: Le Chatelier's Principle  (Read 3273 times)

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Offline lilcangel348

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Le Chatelier's Principle
« on: February 25, 2010, 01:48:19 PM »
If a student adds solid sodium chloride to a saturated solution of ammonium chloride, the correct interpretation of LeChatelier's Principle will predict that

a. more solid will dissolve
b. more solid will precipitate
c. ammonia will form by a redox reaction
d. metallic sodium will form by a redox reaction
e. the equilibrium constant will decrease

My initial guess for this problem was B. more solid will precipitate but i wanted to see if there was a better answer to the question. Thanks. :)

Offline Schrödinger

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Re: Le Chatelier's Principle
« Reply #1 on: February 25, 2010, 10:54:45 PM »
Just try to figure out what happens to the equilibrium :

$$ \mathrm{NH_4Cl} /$$  ::equil:: $$\mathrm{NH_4^+} + \mathrm{Cl^-}/$$

on the addition of NaCl :

$$ \mathrm{NaCl} \rightarrow \mathrm{Na^+} + \mathrm{Cl^-}/$$
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Offline zeoblade

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Re: Le Chatelier's Principle
« Reply #2 on: February 26, 2010, 08:25:34 PM »
I have a feeling the degree of dissociation of NaCl is greater than NH4Cl so the NH4Cl will precipitate

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