Question

Caleb Davis Pre-lab Q's a. You will be titrating an acetate buffer with HCl. What is the acid and conjugate base of this buffer? HCI + CH;COO = CH3COOH + C1 (CH3COOH = conjugate acid) (conjugate base -CH2COO) b. At the half equivalence point, there is a conjugate pair present in solution. Write the balanced Ka equation for Acetic acid and its mass action expression. Then rearrange the equation to isolate (H30+). c. At the equivalence point, what acid and base species are present in solution? Write the Ka expression with water for when all of the conjugate base is protonated. Rearrange the equation to isolate (H30+). C. After the equivalence point what has predominant impact on (H30+). e. What is the Ka and pka of an acetate buffer? 1.76x10^-5 = Ka: 4.75 = pka
please help with remaining questions. not sure how to figure these out or if there is more information required to figure them out. also, are the ones i have answered correct? thanks so much for your help.

Answer 1

— си, tоо ч + до ( а нал + см,соо? when base acid conjugado base and losses it u then its calbd conjugate : ce is the conjugate bapo hero. Б) K = [н'] Гом, лоо1 Гам, во оч] на есhоmе bе е си, сьо +и, о®— см, оби и о mass ochion expression = (4) {cun coon) Enzo] ги о*) см, ее] (и, o'] = ) 1 keq (си, ) (и can woo] C) boud Cup woul bace do ... Ка: Гд о*] Гcu, oz] Гон, своч) см. •1 (и, 6 ") - K4x Cou, wочу си, 61 ГСмооо] o The concentration of not has decreased after reaching the equrolence to indid Karlit4 x 10 Pu- 3.6 to 5,6 depending on the concentration, e