Question

C innya putter resists changes m per caused by the addition of Her OH. 3) Blood is buffered mainly by the HCO; -- H2CO, system (K, H.CO; = 4.4 x 10'). The normal pH of blood is 7.40. a) What is the ratio [H.CO.J/[HCO )? b) What does the pH become if 10% of the HCO, ions are converted to H.CO.? c) What does the pH become if 10% of the H.CO, molecules are converted to HCOS? Recall, H2CO, is a diprotic acid, which implies that its conjugate base, HCO, (the bicarbonate ion) may also behave like an acid. For all of these questions, you may ignore the partial ionization of the bicarbonate ion. HCO3 (a) [PIE8 Hº (aq) + CO2 (a) Its acidity is very small with respect to carbonic acid.

Answer 1

СчCo.) Ги от [ио, - G912 ( се, ③ 9 pkq = log ka 2 -og ( 4-4 x0-7) - 6:35, ен, ека 4 log (нсо, 7 C%C032 57- 40 = 6-356 + Цоя Слсо, - Цея (нсо, = 1. 04. CHCO3) [mcoj ] = 10. 96 C%Cos - Сча Сез) . o. 6012 (алуш) 6 from ; we have Снс -12 | o-46 [ Hito, J let ChС, = pc m ; so Cнсе, -> |c•4 6x Now Ho - Helen І: jo. 96x x c: - 0.1 x 40: 1x 1:) x ри. Рка + Леа СНС, Ј оссо, - 6 356 + са 10-66 |х - 7:3S | asus / hton = ціо, - I. x 10 - 96 с С; -о- jх +о. ) |: 06x . qх 6 356 + Aeg 11-06x o-ax - 7. 44 ( as) Hocal J0:86x Е: рч