Homework Help: chemistry

Posted by krystal on Tuesday, February 21, 2012 at 9:11pm.

A pan full of hot salt water, NaCl(aq), is cooled and NaCl(s) precipitates. Explain why this happens.

Chloride ions are more strongly attracted to the metal in the pan than the sodium ions at low temperatures.

As the vapor pressure of the solution decreases the solubility of the salt goes down.

As the temperature decreases the solubility of the salt goes down and the salt in excess settles out as a precipitate.

As the temperature decreases the solubility of the salt goes up and the salt in excess dissolves.

chemistry - krystal, Tuesday, February 21, 2012 at 9:14pm
is the answer Chloride ions are more strongly attracted to the metal in the pan than the sodium ions at low temperatures?
chemistry - DrBob222, Tuesday, February 21, 2012 at 9:22pm
I think that's hogwash.
chemistry - krystal, Tuesday, February 21, 2012 at 9:35pm
then is this the correct answer

As the temperature decreases the solubility of the salt goes down and the salt in excess settles out as a precipitate.
chemistry - DrBob222, Tuesday, February 21, 2012 at 9:42pm
That's much better, although the solubility of NaCl is not much higher at 100 C than it is at 0 C.
http://www.kentchemistry.com/links/Kinetics/SolubilityCurves.htm

Answer this Question

Related Questions

Chemistry - When NaCl dissolves in water it breaks up in sodium ions (Na+)and ...
chemistry - Distinguish between table salt dissolving in water and sugar ...
chemistry - If you have 25.3 g of NaCl. a) how many moles of NaCl do you have...
chemistry - NaCl (aq) + NH3(aq) + H2O(l) + CO2(s) --> NH4Cl(aq) + NaHCO3(...
Thermochemistry - Compute the change in temperature when 1.1 g of sodium ...
Chemistry - Given that the solubility of sodium chloride is 36 grams per 100 ...
Chemistry - what happens when NaCl(s) is dissolved in water? (1)Cl-ions are ...
Reverse Equations - a four-component mixture was extracted. In the mixture was R...
chem - Can someone help me please? 1)Calcium chloride is found in salt mixtures ...
science - compare table salt with glucose table salt is a strong electrolyte ...

For Further Reading

First Name:
School Subject:
Answer: