Question

medmcs AnG a. Write an equation for the equilibrium that controls the pH of this buffer. b.Write an equation to show how the buffer neutralizes any added acid (H30+). How does this reaction affect the equilibrium? c.Write an equation to show how the buffer neutralizes any added base(OH-). How does this reaction affect the equilibrium?

Answer 1

supposedly, we have a buffor salution containing Cty cool & CH. CORNE e Acetic and sodium acetate C4 Cao / - weakacid to confugatan Ricidic Buffer) ка. equilibrium Equation that controls the pH of the buffer cңComң cң соо" +н", Ka= [ oo] [47] CCM, corony Kax [CH₂ cool] . [HT] [Choo] [А, СЕ logka + ley en cool bych to - log ka log cer con la = -log CH 13 pk y cool [ch, Coth] - Henderson Hasselbatea I equation which controls the pH of the

1/6 16) CH₂COOH beoul Addition of aud (14") to the buffer will neutralise the added ned by the following Audic Buffor Beacetim quamdicom н" -- цел --, Оу, ән (т., а Wys from the enternal Men - acid Hence No dignificant amount of Ht a present to give appreciable change in pH. - che corone che car +40 Additien of H* (from enternal aud) will cause the reaction to shift backward by Le Chatelier's prinaple. Naoh - COOH - scoot 7 - Aridie Buffer Keq is very high (~10²) .

CM Cook + oH - Chottho, Keqe ka (from enternal "Base like Naat) Tove it! Addiction of Base Core) will be serveutralised by haefferas per above rear o Thus No significant accent of or s preant to give appreciable change in pH. (forward directions Also, А олон с= си, ст" + к к Bare will extract tº and thuis removal of It will cause the rea" to shift forward by Le-chatelier's principles, 1 eet