CHEM 230 Lecture Notes - Lecture 9: Acid Dissociation Constant, Equivalence Point, Conjugate Acid
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Pug is used as a record keeping tool. One of the acid or base has to be strong. Both can be strong but both cannot be weak. We"re only concerned about the acid base reaction so we ignore na and cl. Moles of oh = 0. 01 x 0. 08 = 0. 0008. Moles of h = 0. 015 x 0. 1 = 0. 0015. We will use up of whatever has a smaller number of moles. So in this case we would use up all of the oh. To get m, divide by the total volume of 25ml to get [h+] and then use that to get ph. The equivalence point (she likes the term stoichiometric point) you added the same number of moles of acid (or base) as you have base (or acid) into your beaker. So now we"re left with 0. 0007 moles of (+ )n the beaker, we will know if it"s acid or base but we just won"t know the.
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