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### Topic: How many moles of particles? also electorlytes  (Read 5580 times)

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#### mzpinkbananna

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##### How many moles of particles? also electorlytes
« on: April 05, 2005, 04:55:32 PM »
okay so im studying for my chem test, which is tomorrow and ive run into a problem that has stumped me!
i dont know how to answer this:
How many moles of particles would 3 moles of Na2So4 give in solution?
im not quite sure how to do this, for some reason i wanted to attmept it by using the 6.02 x 10^23 but i think thats way off track- i tried a couple things but the answers i got were wrong, the answer to this problem should be 9 total moles &i would really appreciate it if someone could help me ASAP

I also was questioning, how to tell weather an electrolyte is an electrolyte, you see i understand that an electrolyte is a solution that conducts electricity, but how can you tell weather or not it conducts electricity without actually testing it?

#### Mitch

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##### Re:How many moles of particles? also electorlytes
« Reply #1 on: April 05, 2005, 05:53:56 PM »
I also was questioning, how to tell weather an electrolyte is an electrolyte, you see i understand that an electrolyte is a solution that conducts electricity, but how can you tell weather or not it conducts electricity without actually testing it?

It will conduct electricity if an ionic compound is dissolved in the solution
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#### Donaldson Tan

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##### Re:How many moles of particles? also electorlytes
« Reply #2 on: April 05, 2005, 08:03:07 PM »
Na2SO4 (s) => 2Na+ (aq) + SO42- (aq)

The above equation describes the dissolution process. One mole of sodium sulphate dissolves to produce 3moles (ie. 2 + 1) of particles in water.
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