Question

What is the pH of 5x10-3M solutions of the drug shown below (Atropine,pka = 9.7:pKb = 4.3) used to treat fever? OH o A 3.3 O B 10.7 OC 6.0 OD 8.0 Unanswered 2 attempts left Submit

Answer 1

Ka= 109.7 lef aid symbol be HA CON - HA +H₂O H₃ of t e I 5X103 o 1.0 l c -a ta ta e sX103_n H₂ot 1(A) = x2 10 9 7 = 5x1031097 = 9.99% 10 -THA) 5x10²_x 5x10² x 1 5x103 n lexio7 ka= 5 loupt 132=100m pH = -log Int] = -109 (100) = 6