Like above wefrst write that appropriate reaction,H2C6H6O6H++HC6H6O−6and produce an ICE chart[H2C6H6O6]£H+¤£6H6O−6¤I0.1000C−xxxE0.10−xTheKa1equation givesKa1=7.9×10−5=(x)(x)(0.10−x).Rearranging and using the quadratic formula givesx=£H+¤=0.0028.Therefore thepH=−log (0.0028) = 2.55Example 3:Calculate the concentration of C6H6O2−6for thecase of example 2.Now we do need the second dissociation reaction6H6O−6H++C6H6O2−6and we setup and ICE chart where we use thex=£
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This document was uploaded on 11/01/2011 for the course CHM 2046 at University of Florida.