conjugate acid

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con·ju·gate ac·id

the protonated compound of two compounds that differ in structure only by the presence of the labile proton.
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References in periodicals archive ?
Adding substituted and conjugate acids flowing the order in scheme 1 and table 1.
For the following mixtures, identify the conjugate acid and base.
We wanted to see if they would, of their own volition, include the term conjugate acid to match the term conjugate base that we had provided.