Label the stronger acid in each pair. Which acid has the stronger conjugate base? a. H 2SO 4 or H 3PO 4 b. HF or HCl c. H 2CO 3 or NH 4+ d. HCN or HF

Rank the acidity of the following compounds from weakest to strongest: a. HC=CH, CH³CH₂CH3, CH3CH₂OH, (CH3)3COH b. HCI, HI, CH3CH2CHO, CH3CH2COOH c. CH3CH₂OH, CH3CH(F)OH, CH3CF2OH, H₂SO4 d. C6H5COOH. C6H5NH2, HI, cyclohexane CH.COOH (CH,NH ECF2

Classify each species as either a Lewis acid or a Lewis base.a. Fe3 + b. BH3 c. NH3 d. F-

For the following reaction at equilibrium HCIO4 + H₂O →→ CIO4¹ +H30+1 HCIO4 is the H₂O is the CIO4¹ is the d H3O+¹ is the The K₂ approaches positive infinity. a. acid b. base c. conjugate acid e. strong f. moderately strong or weak It is on the list of strong acids and so is a It is both a very It does not contain hydroxide so is a It is a d. conjugate base g. weak acid and a very acid. base. acid because it is on the list of strong acids. base.

Which of the following is the strongest acid? ● A. CH3CH₂OH B. CH3OCH3 С. D. Е. CH3CH !! CH3COCH3 "! CH3COH "

Identify the conjugation acid-base pairs in the following reactions. An acid donates a proton to become a conjugate base. A base accepts a proton to form a conjugate acid.

Are acidic and basic rankings of the compounds correct?

36. Solution A has a pH of 2 and Solution B has a pH of 4. What is true about solutions A and B? A) Solution B is 100 times more acidic than Solution A. B) Solution A is 100 times more acidic than Solution B. C) Solution B is 2 times more acidic than Solution A. D) Solution A is 2 times more acidic than Solution B. 37. You dissolve some sodium fluoride, NaF, in some water which has a pH of 7. What do you know about the pH of the solution? A) It will be less than 7. B) It will be equal to 7. C) It will be greater than 7. D) It is impossible to predict the pH of the solution. 38. You dissolve some sodium chloride, NaCl, in some water which has a pH of 7. What do you know about the pH of the solution? A) It will be less than 7. B) It will be equal to 7. C) It will be greater than 7. D) It is impossible to predict the pH of the solution.

30. Is HF a strong or weak acid? * O yes no O maybe

33). What is the conjugate base of the hydro I'm ion, H3O+?a. OH- b. H3O+  has no conjugate base c. H2O d. H2O-