What should be the ratio of concentrations


If you dissolve caffeine in acid a proton goes onto one of thenitrogens to give the conjugate acid of caffeine,caffeineH+ . The acid dissociation costant(Ka) of caffeineH+ is Ka =0.26M. If a cup of tea has a pH of 7.6, what should be the ratio of concentrations of caffeine H+ to unprotonated caffeine intea?

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Chemistry: What should be the ratio of concentrations
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