rathaditi4036
14.07.2019 •
Chemistry
What is the buffer component ratio, (bro-)/(hbro) of a bromate buffer that has a ph of 8.08. ka of hbro is 2.3 x 10-9?
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Ответ:
pKa= -log(ka)
= -log(2.3*10^-9)
= 8.64
Now pH can be calculated using equation:
pH=pka+log(BrO-)/(HBrO)
8.08 =8.64+log(BrO-)/(HBrO)
log(BrO-)/(HBrO)=8.08-8.64
= -0.56
(BrO-)/(HBrO)= 10^-0.56
=0.275
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