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Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: lumberjack on August 22, 2004, 01:00:31 PM

Title: Testing acetic acid concentration
Post by: lumberjack on August 22, 2004, 01:00:31 PM

How can I find the concentration of acetic acid in an aqueous soln ?

i.e.  Vinegar :arrowhead: 5%  acidity

Title: Re:Testing acetic acid concentration
Post by: Limpet Chicken on August 22, 2004, 01:30:47 PM

The usual way to determine concentration of an acid is to titrate drop by drop into a basic solution of known volume and concentration, and working out the amount taken to neutralise PH exactly.

Title: Re:Testing acetic acid concentration
Post by: AWK on August 23, 2004, 03:56:53 AM

For most calculation you may use density of water instead because the density of vinegar is 1.0055 g/mL
Glacial acetic acid shows density of 1.0492 g/mL.