Question

A 26.4 mL sample of 0.392 M trimethylamine, (CH3)3N, is titrated with 0.331 M perchloric acid. After adding 13.4 mL of perchloric acid, the pH is _______.

Answer 1

thinelthyl mns perchlerie is weak base nud is Ktlimde thimthg Rnune Mylandy 0.342 M) x26 4(mt x Vlune (mt) 10. 35 Mllnls buchlmr d 0-331 x 13.4 4.43 hio i thetonl hich in Rater bulwween is 4inlene foint, mbal hence ankus Harsel bneh CAn is consrneted ICE table to calenti velume of se gel thalhs not en ttld is gred fomt oase to neach inlmes

H20 +On 10.35mimph 1 4.43 4.43 1 4.43 4.43 4.43 E lo.35-4-43 5-12 mimal bash ttan Handeusin Hasd timgrgt e l(enu + meles Velauns f Velume ba id 443 4.43 26 4+13.4 39.8 OTTM 1IM Malandi of cu,N 512 0.144M 348 pKb 4.19 po4: 414t Lo o111 b-14 4 4.14 t 1-0.127)

Po4: 4.06 2 Pu- 14-pon 14-4.06 1-44