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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: dada2 on November 02, 2008, 10:35:06 PM

Title: Acid-Base Buffers
Post by: dada2 on November 02, 2008, 10:35:06 PM

What would be the difference if you added HNO3 to Ag2CO3 in equilibrium and if you added HCl to Ag2C03 in equilibrium?
Shouldn't they have the same outcome since HNO3 and HCl are both strong acids?

Title: Re: Acid-Base Buffers
Post by: AWK on November 03, 2008, 12:59:27 AM

Which acid forms precipitate with silver salts?

Title: Re: Acid-Base Buffers
Post by: dada2 on November 03, 2008, 01:20:26 AM

HCl i believe

Title: Re: Acid-Base Buffers
Post by: Borek on November 03, 2008, 03:52:16 AM

So does it matter whether you add HCl or HNO₃, or not?

Title: Re: Acid-Base Buffers
Post by: dada2 on November 03, 2008, 09:25:37 AM

I'm not sure. I want to say HNO3 would shift the equilibrium to the right by dissolving the precipitate and HCl would create a different precipitate but I'm not sure

Title: Re: Acid-Base Buffers
Post by: Arkcon on November 03, 2008, 09:28:14 AM

Do you actually have an acid-base buffer solution, if one of the components is a solid, settling to the bottom of the storage vessel?

Title: Re: Acid-Base Buffers
Post by: AWK on November 03, 2008, 11:32:19 AM

Quote from: dada2 on November 03, 2008, 09:25:37 AM

I'm not sure. I want to say HNO3 would shift the equilibrium to the right by dissolving the precipitate and HCl would create a different precipitate but I'm not sure

Both strong acids replace the weak one forming new salts - silver chloride and silver nitrate, but only chloride in insoluble in water.
That's all!