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Offline P-man

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Experiment
« on: April 16, 2006, 08:09:55 PM »
I did this experiment today where I added some sulphuric acid to some table salt.

NaCl + H2SO4 --> NaSO4 + H2Cl

What is this?
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Online billnotgatez

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Re: Experiment
« Reply #1 on: April 16, 2006, 09:27:36 PM »
I would change it to HCl and redo the formula

Offline Mitch

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Re: Experiment
« Reply #2 on: April 16, 2006, 10:03:46 PM »
You did not make HCl.
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Online billnotgatez

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Re: Experiment
« Reply #3 on: April 16, 2006, 10:53:27 PM »
mitch

I assume you are not implying that he made  H2Cl .


I think mitch made a typo due to tiredness and now he is napping.

« Last Edit: April 16, 2006, 11:18:26 PM by billnotgatez »

Offline Mitch

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Re: Experiment
« Reply #4 on: April 17, 2006, 01:33:48 AM »
He made an acidic aqueous solution of dissolved sodium and chlorine, nothing more.
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Online billnotgatez

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Re: Experiment
« Reply #5 on: April 17, 2006, 03:05:13 AM »
I assume you are saying that because the original post did not mention a heating proceedure.

Offline Mitch

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Re: Experiment
« Reply #6 on: April 17, 2006, 03:29:22 AM »
I didn't know you could make HCl from the above reaction at elevated temperatures.
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Offline Borek

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Re: Experiment
« Reply #7 on: April 17, 2006, 06:09:07 AM »
I didn't know you could make HCl from the above reaction at elevated temperatures.

It requires concentrated sulfuric acid and solid NaCl.
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Offline Borek

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Re: Experiment
« Reply #8 on: April 17, 2006, 06:12:21 AM »
I did this experiment today where I added some sulphuric acid to some table salt.

NaCl + H2SO4 --> NaSO4 + H2Cl

What is this?

http://www.chemicalforums.com/index.php?topic=3709.msg16210#msg16210

You haven't learnt much since  :-\
« Last Edit: April 17, 2006, 07:18:41 AM by Borek »
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Offline AWK

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Re: Experiment
« Reply #9 on: April 17, 2006, 08:06:24 AM »
Using cols concentrated H2SO4 and solid NaCl the following reaction proceeds
NaCl + H2SO4 = HCl(g) + NaHSO4
During warming
NaHSO4 + NaCl = Na2SO4 + HCl(g)
AWK

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Re: Experiment
« Reply #10 on: April 17, 2006, 03:12:16 PM »
Well I can say that I was using solid NaCl and concentrated sulphuric acid.

Well I guess that my HCl just evaporated away and I was left with an aqueous solution of NaHSO4.

I say this and argue against Mitch's viewpoint because there was a gas escaping form the test tube, so the whole reaction was not purely liquid. Assuming my equation is what happened, then I would want to know what I can do with NaHSO4. And what would it be called? Sodium Hydrosulphate?
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Offline pantone159

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Re: Experiment
« Reply #11 on: April 17, 2006, 05:06:42 PM »
And what would it be called? Sodium Hydrosulphate?

Sodium bisulfate, or sodium hydrogen sulfate.  The first is more common, but the second term is less confusing.

Offline constant thinker

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Re: Experiment
« Reply #12 on: April 17, 2006, 05:37:52 PM »
http://en.wikipedia.org/wiki/Sodium_bisulfate

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Online billnotgatez

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Re: Experiment
« Reply #13 on: April 18, 2006, 04:22:53 AM »
You still do not state what you did for the experiment completely. Did you just throw the chemicals together at room temperature? Did you heat the mixture? Did you bubble any of the gas produced through water? You do not have to write an abstract, introduction, etc to give us a better idea what you did, but what you posted is piecemeal and difficult understand. At this point, I can only surmise that you chucked a few chemicals together and watched to see what happened. Then you guessed a formula, which was incorrect, and postulated conclusions based on imprecise observations. A lot of time we can just throw something together to get an idea of a possible experiment, but then we have to repeat in a structured way so as to get at least a little more precise observation. I like when people experiment and learn, but I get disappointed when it is done in a sloppy way. Keep experimenting, but please tell us the whole story.

Also keep safety in mind.


AWK -

http://en.wikipedia.org/wiki/Mannheim_process

I would have opted for the Mannheim process formula
2 NaCl + H2SO4 = Na2SO4 + 2 HCl

I would have never guessed the formulae you posted.

Seems there is more than one way this reaction can happen.



« Last Edit: April 18, 2006, 05:07:24 AM by billnotgatez »

Offline Mitch

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Re: Experiment
« Reply #14 on: April 18, 2006, 04:46:43 AM »
If HCl(g) is a possible side product, then I hope you are doing these experiments outside.
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