Question

If possible, please answer all questions

2 Malonic acid is a diprotic acid with the following values for pka and pk Answer the following questions 3 points total HO malonic acid pka -2.83 pk-5.69 .) Explain why malonic acid is a stronger acid thanactic acid (CHCO H.pK.-476) 1 point b.) Explain why the anion resulting from the initial dissociation of maonic acid is so much less acidic than malonic acid itself. 2 points 3.) For each of the following acid-base reactions, utilize appronximate pK, values to predict both the espected direction and the extent of the reaction. 3 points total @ 1 point each Li Na NH Na +CH,CHONa CHICH OH

Answer 1

2a) Malinic aid is a diproic aed and can undengo tuoo dissociations to give the Htions. Each dissociation steps has it ouns ka and pka Values The fast disoucation tentnut Kar will be greater tra the serond Kas will be greater tha the second haa e Ha a betaute the fest pmotn to dissoudto is always rost ocidie he cas alo conpoe their pha va kay than Kag le eier he dlismua han cnsteut, Ka ower wil be tho pka valuas Bud shonger teill be the acid

pha values or the Anst ionisatian of malanic acid and acatic ooid are 263 and 76 Sunce malonic acid. has lone γ pkavalued,than a, acehc aud, t is a shorger aid 2) Aordan to Bronshd- houry acid base contept, an acid lares oses a pmoken giving a tonjugate ba a confu se 011下 041 conjugoto base anton vesulting hem inihal dusmniaham

Aci b thic toncept shrnger aids ill have lnaker wil have weakey coY Conjugato base ie dyts conjuwete base takes mone time en not so easy Since of the tonjigats bare the pha 5 69 it is less acidic