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buffer solution

how would i make a basic buffer if i was given 250cm3 each of the following 0.5moldm3 solutions and no other chemicals? solutions are HCL acid, ethanoic acid, ammonia, sodium hydroxoxide, I need to give approx volumes of the solutions which i would use to make as much as possible of this buffer. i may not need all the solutions. Does any1 have any ideas?

isha01 Sat 22/11/08 00:28

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EDDIE51
Sun 23/11/08
23:13

This link gives formulations for many common buffers, it may be of help.
http://delloyd.50megs.com/moreinfo/buffers2.ht ml

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