Rank the following four acids from highest pKa values to lowest pKa values measured in water. No two acids have the same pKa. lowest highest pKa pKa a) A > B > C > D A B b) B > > D > A c) C > D A В > > F. F. HO. OH. F F d) D > A > B > F e) D > C > B > A

Consider two acids: Cl,CHCO,H (dichloroacetic acid, pK, = 1.3) and HCO,H (formic acid, pK,- 3.8). %3D a Which acid is the stronger acid? Select the single best answer. dichloroacetic acid formic acid

Q2-3:(a) Given that Kb for ammonia is 1.8 X 10 -5 and that for methylamine is 4.4 X 10 -4, which is the stronger base? (b) which is the stronger acid ,the ammonium ion or the methylammonium ion ? (c) calculate the Ka for NH,* and CH;NH;* + Q2-4: A particular sample of vinegar has a pH of 2.90, assuming that the vinegar contains only acetic acid (Ka acetic acid in vinegar . 1.8 X 10 -5), calculate the concentration of Q2-5: Calculate the molar concentration of OH-ions in an 0.85M solution of hypobromite ion , BrO- (Kp 4.0X10-6) .what the pH value of this solution?

6. Find Ka and Kb of each of the following amphiprotic anions and determine if they act as an acid or a base in water solution. а) НРО- Ka = (С.А. 3D Kb = A or B b) HC,H;0, Ka = (C. A. = ) Kb = A or B c) HSO; Ka = : (C. A. = Kb = A or B

The following scenes represent three weak acids HA(where AX, Y, or Z) dissolved in water (H₂O is not shown):(a) Rank the acids in order of increasing Kₐ. (b) Rank the acidsin order of increasing pKₐ. (c) Rank the conjugate bases in orderof increasing pK(b). (d) What is the percent dissociation of HX?(e) If equimolar amounts of the sodium salts of the acids (NaX,NaY, and NaZ) were dissolved in water, which solution wouldhave the highest pOH? The lowest pH?

For each value of Ka, calculate the corresponding value of pKa. Which compound is the stronger acid? Q.) chloroacetic acid, Ka = 1.38 X 10-3

Please answer all parts.

The benzylammonium ion (c6H5CH2NH3+) has pka=9.33 and the propylammonium ion has pka=10.71. Which is the stronger base, benzylamine or propylamine

1) Complete the following reactions and identify the acid, base, conjugate acid and conjugate base. CH;CH,NH2 (aq) + H2O (1) a) CH;COOH (aq) + H,O (I) b) c) Identify the conjugate base and conjugate acid of each of the following. Conjugate Base Molecule Conjugate Acid HCO3 H20 HSO4- H2PO4

1)How do you Calculate the percent dissociation for unknown acid? Please give example