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Offline Garabato

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« on: 12/09/2007 05:15:39 »
Hi

This may be a pretty noobish question; but I'm having a hard time figuring out what happens.

If you add few droplets of HCl to some NH3. And some "whity" smoke is formed, what is the reaction that took place?

Thank you.


 

Offline lightarrow

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« Reply #1 on: 12/09/2007 17:22:24 »
Hi

This may be a pretty noobish question; but I'm having a hard time figuring out what happens.

If you add few droplets of HCl to some NH3 . And some "whity" smoke is formed, what is the reaction that took place?

Thank you.

HCl + NH3 --> NH4Cl which is a solid white substance and so it's generated in white fumes, in those conditions.

A little, simple magical experiment:
you wet your hands with diluted ammonia solution, then you say to people that you will do a magic generating smoke from nothing. You approach a glass containing an HCl solution and you brush your hands, one on the other, over the glass. A white smoke will appear.
 

paul.fr

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« Reply #2 on: 12/09/2007 17:25:25 »

HCl + NH3 --> NH4Cl which is a solid white substance and so it's generated in white fumes, in those conditions.

A little, simple magical experiment:
you wet your hands with diluted ammonia solution, then you say to people that you will do a magic generating smoke from nothing. You approach a glass containing an HCl solution and you brush your hands, one on the other, over the glass. A white smoke will appear.

classic
 

Offline lightarrow

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« Reply #3 on: 12/09/2007 20:02:44 »

HCl + NH3 --> NH4Cl which is a solid white substance and so it's generated in white fumes, in those conditions.

A little, simple magical experiment:
you wet your hands with diluted ammonia solution, then you say to people that you will do a magic generating smoke from nothing. You approach a glass containing an HCl solution and you brush your hands, one on the other, over the glass. A white smoke will appear.

classic
Yes. And do you know how to make people believe you cut your hand with a knife?
 

paul.fr

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« Reply #4 on: 13/09/2007 14:41:49 »
Yes. And do you know how to make people believe you cut your hand with a knife?

I don't know that one. (eagerly awaits the answer)
 

Offline lightarrow

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« Reply #5 on: 13/09/2007 19:18:35 »
Yes. And do you know how to make people believe you cut your hand with a knife?

I don't know that one. (eagerly awaits the answer)
Well, I asked you because I would like to know it too! :)
No, I'm joking.
You wet a thin line of your hand with a concentrated water solution of NaSCN (sodium solfocianide) and you wet a knife with a Fe3+ solution, for example Fe(NO3)3. Then you touch your hand with the knife, making the blade correspond to the wet region; immediately a blood-coloured line will form in your hand.
 

Offline Bored chemist

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« Reply #6 on: 13/09/2007 19:19:55 »
Another way is to cut your hand with a knife. I#m glad there's a less painful way.
 

Offline lightarrow

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« Reply #7 on: 13/09/2007 19:25:40 »
Another way is to cut your hand with a knife.
I'm glad there is you to give solutions to which I've never thought. :)
 

paul.fr

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« Reply #8 on: 14/09/2007 12:28:54 »
Lightarrow, you are truly a star. I can also see a career on the comedy double act circuit for you and Bored chemist :-)
 

Offline lightarrow

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« Reply #9 on: 14/09/2007 12:44:19 »
Lightarrow, you are truly a star. I can also see a career on the comedy double act circuit for you and Bored chemist :-)
Thank you!
 

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« Reply #9 on: 14/09/2007 12:44:19 »

 

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