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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: bookworm on February 13, 2009, 07:30:35 AM

Title: Buffer and salt hydrolysis??
Post by: bookworm on February 13, 2009, 07:30:35 AM

how do i differentiate from the questions, when i should use buffer formula?
as both salt hydrolysis and buffer requires either strong acid + weak base or strong base + weak acid..

Title: Re: Buffer and salt hydrolysis??
Post by: cliverlong on February 13, 2009, 03:03:42 PM

Quote from: bookworm on February 13, 2009, 07:30:35 AM

how do i differentiate from the questions, when i should use buffer formula?
as both salt hydrolysis and buffer requires either strong acid + weak base or strong base + weak acid..

A first.

I have absolutely no idea what you are writing about.

Can you give the original question?

Clive

Title: Re: Buffer and salt hydrolysis??
Post by: Vidya on February 14, 2009, 01:50:00 AM

A buffered solution is always made up of a weak acid and its salt or weak base and its salt.
like -CH3COONa and CH3COOH
whereas salt solutions give you either a basic solution or an acidic solution depending upon their  nature.
I think this information will be helpful to you.