Chapter 7, Problem 76PP

Calculate the pH of 0.25 M acetic acid.

Calculate the pH of 0.066 M ammonium ion.

Calculate the pH of 0.05 M acetic acid.

Calculate the percent ionization for 0.35 M nitrous acid.  Use the assumption to find [H3O+] first. K = 7.1 x 10-4

For each of the following reactions:  Fill in the missing reactant, reagent, or product (s), indicating stereochemistry where appropriate using dashed and wedged bonds. If the reaction forms a racemic mixture, draw both structures in the box and write the word “racemic”.

5) Using the carbon-containing starting material(s), propose a synthesis based on the following retrosynthetic analysis. Provide structures for all intermediates. The carbon atoms in the product must originate from the starting material(s), but you may use as many equivalents of each starting material as you would like, and any reagent/reaction you know (note: no mechanisms are required). H H =

Calculate the percent ionization for 0.0025 M phenol. Use the assumption to find [H3O+] first. K = 1.0 x 10-10

10:04 AM Tue Mar 25 Sunday 9:30 AM 95% Edit Draw the corresponding structures in each of the boxes below: Ester Name Methyl butyrate (Example) Alcohol Structure H3C-OH Acid Structure Ester Structure Isoamyl acetate Ethyl butyrate Propyl acetate Methyl salicylate Octyl acetate Isobutyl propionate Benzyl butyrate Benzyl acetate Ethyl acetate H₂C OH HC

2) For each of the following reactions: (i) (ii) Fill in the missing reactant, reagent, or product (s), indicating stereochemistry where appropriate using dashed and wedged bonds. If the reaction forms a racemic mixture, draw both structures in the box and write the word "racemic". (a) (b) 1) R₂BH 2) H₂O2, NaOH (aq) HBr Br racemic Br + Br Br racemic