Question

Compound Compound a 0 0 CH3CH2OCCH COCH2CH3 diethyl malonate pk = 13 ondondoomet CHECOH acetic acid pk, = 4.76 andet Compound 0 0 CHCCHCCH pentane-2,4-dione pk, = 9 endon.com Which of the compounds above are strong enough acids to react almost completely with a hydroxide ion (pk, of H70 - 1574) or with a bicarbonate ion (pk, of H2003 -6.37)? Enter your answers as an alphabetized string, i.e. abc, not cba, enter none if none of the compounds are strong enough acids Hydroxide ion: Bicarbonate ion:

Answer 1

Ans The pRa value. pridictthe direchon amet Pqulboum rea tion Hhghe te pha Loser pka Dith Hychex on toill be audlue Natare Louser audic Nature Htghe -७ध HrO pKa 13 tom Spka= 15.74 Equlibium direction doioes energy Hence thu m means Higher pka value taverr farand directon cM3 + 1 pkas 1s74 Pka 476 fvaa i foninoed allrection duo to Hyh pkt Hao оn + и faowaod direetian due to pra Hio p PKa- diketore Drth Bicao bomate to + fha13 oxn Not favouse ol dur Low pka pha 6.31 Cartoonie auf

Den +co27 CHI pka u76 pka- 1574 Reaction fav ond d to otn Hro and ad. elear pra H207 Pra asi'd Reaution Not avaneof Due to dower pka aud compore fo diketn Praz 6.37 carbeonie abc Henea, for ttooxia fon for bicasbonate ton
pKa values allow you to predict the equilibrium direction of acid-base reactions for organic molecules. Weak acids and bases are lower in energy than strong acids and bases, and because equilibria favor the reaction side with the lowest-energy species, acid-base reactions will go to the side with the weakest acids and bases.