13-When making a buffer of pH = 5, acids with the following Ka values are available. Which would be the best acid to use

Post by **answerhappygod** » Wed Apr 27, 2022 6:55 am

: 13 When Making A Buffer Of Ph 5 Acids With The Following Ka Values Are Available Which Would Be The Best Acid To Use 1 (34.22 KiB) Viewed 44 times

: 13 When Making A Buffer Of Ph 5 Acids With The Following Ka Values Are Available Which Would Be The Best Acid To Use 2 (39.44 KiB) Viewed 44 times

: 13 When Making A Buffer Of Ph 5 Acids With The Following Ka Values Are Available Which Would Be The Best Acid To Use 3 (43.96 KiB) Viewed 44 times

13-When making a buffer of pH = 5, acids with the following Ka values are available. Which would be the best acid to use? * O 3.0x10^-8 O 1.8x10^-8 O 1.8x^10-5 O 4.9x10^-10
12-If Kb for dissociation of Sulfite SO32- is 1.48 x 10^-7, and Kb for HSO3- is 7.14x 10^-13, Then, Ka1 for the dissociation of sulfurous acid H2SO3 is: * 04.11x10^-9 O 10^-6 O 1.4x10^-2 O 7.99x10^-8
9- Calculate the hydroxide ion concentration of a 0.05 M Na2HA solution. Given that the dissociation constants of H3A are Ka1 = 10-3, Ka2 = 10-8 and Ka3= 10-12 * = O A. 10-4 O C. 8 x10-3 O B. 10-10 O D. 12 x 10-12