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Topic: Lab Help  (Read 3714 times)

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Offline canadianfb

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Lab Help
« on: January 23, 2008, 05:37:25 PM »
Had a lab today didnt go to well.  Anyways, when you mix silver nitrate and add 10 drops of HCl to it, it turns to a white liquid with some precipitate.  You drain the liquid and keep the precipitate in the tube which I assume is AgCl, then add some DI water then heat, what is suppose to happen when the heat is added.  Anyone here do a simular experiment to this before, in the other tubes I had lead nitrate and mercury 1 nitrate.  Also, does anyone know of where I could find the results of the various reactions between AgNO3 + HCl, HgNO3 + HCl etc.  Thanks

Offline Kryolith

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Re: Lab Help
« Reply #1 on: January 23, 2008, 06:00:35 PM »
You drain the liquid and keep the precipitate in the tube which I assume is AgCl, then add some DI water then heat, what is suppose to happen when the heat is added.

I guess that's just washing of the AgCl precipitate.

Also, does anyone know of where I could find the results of the various reactions between AgNO3 + HCl, HgNO3 + HCl etc.  Thanks



with HCl you get AgCl as you mentioned.

Offline Arkcon

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Re: Lab Help
« Reply #2 on: January 23, 2008, 06:05:09 PM »
Had a lab today didnt go to well.

Bummer.

Quote
Anyways, when you mix silver nitrate and add 10 drops of HCl to it, it turns to a white liquid with some precipitate.  You drain the liquid and keep the precipitate in the tube which I assume is AgCl, then add some DI water then heat, what is suppose to happen when the heat is added.  Anyone here do a simular experiment to this before, in the other tubes I had lead nitrate and mercury 1 nitrate.

Yes, I've done this before.  You have 3 different reagents, you add HCl to each, rinse the precip, add water and heat.  What happens then?  To each one?

Quote
Also, does anyone know of where I could find the results of the various reactions between AgNO3 + HCl, HgNO3 + HCl etc.  Thanks

There should be something in the lab notebook that gives you some specifics.  Hint: something similar yet subtlety different should happen in each case.
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

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