Homework Help: chemistry

Posted by Daniel on Sunday, March 7, 2010 at 1:10am.

Which of the following mixtures will result in the formation of a buffer solution when dissolved in 1.00 L of water?

i) 0.50 mol HClO2 and 0.25 mol HCl.
ii) 0.50 mol HClO2 and 0.25 mol NaOH.
iii) 0.50 mol NaClO2 and 0.50 mol HClO2.
iv) 0.50 mol NaClO2 and 0.50 mol HCl.

chemistry - DrBob222, Sunday, March 7, 2010 at 2:17pm
Buffers are composed of a weak acid and its salt OR a weak base and its salt.
ii will do it. NaOH reacts with HClO2 to form NaClO2 and there is some HClO2 un-reacted. That makes a weak acid and its salt. iii is a salt and the weak acid.
chemistry - Daniel, Sunday, March 7, 2010 at 6:12pm
Thanks a lot!
chemistry - MacChem, Sunday, March 7, 2010 at 9:19pm
We assign these questions for you to complete individually, in order to broaden your knowledge of chemistry... NOT to ask a qualified Doctor for the answer.
chemistry - Anonymous, Sunday, April 18, 2010 at 5:50am
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