BIO SCI 98 Lecture Notes - Lecture 1: Acid Dissociation Constant, Ph
6 Feb 2017
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The rest of the slides at the beginning of the lecture are simply showing why these equations work and how they derived them. If you have any questions about them, feel free to post on the facebook page. And knowing what the delta g is, we can figure out if the reaction is spontaneous or not. Figure out: at equilibrium, we can find out the delta g (naught/zero) with the keq. Figure out: we can solve for ph using the pka and vice versa. We can also use this to figure out how much buffer we need to maintain a certain ph. Minor review equations to know: ph= -log (h+) also pka = -log (ka) and poh= -log (oh-) ph + poh =14. And why: what is the ph of 0. 01m hcl, a 0. 120 m solution of a weak acid (ha) has a ph of 3. 26. Determine the ka: you"re trying to create a buffer at ph 7. 5.
