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Chemistry 18 Online
OpenStudy (anonymous):

why there are differences in pka values for phosphoric acid?

OpenStudy (aaronq):

Because each time a proton is lost the polyatomic ion acquires negative charge making it more difficult to lose a next one.

OpenStudy (preetha):

raman, do you understand what the pKa value is? Write the equation that pKA represents....

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