Exercise 16.12: Starting with a stock solution of 12M HCI, describe how you would make the following solutions. a. 25 mL @ 0.1M b. 150 mL @ 1.0M c. 50 mL @ 12M d. 75 mL @ 0.001M

Given a Ka value of 1.3 X 10-10 for phenol (a benzene with an alcohol group on it-aromatic alcohols are acidic-who knew?), what is its pKa? 7.20    8.75    6.80    9.89

HBr HO. FEB 20

Question 5 (4 points) Which of the following molecules has the lowest pK? 10 OH OH A B D Cl₂C H₂ C OH Main Content CH3OH A B C D

18 1) OH- 2) H+ or OH 7 2 4 3 Br₂ CH₂l₂, Zn/Cu 15 16 14 17 17 1) 03 2) (CH3)2S H₂O, H₂SO4 1) Hg(OAc)2, ROH 2) NaBHд 1) Br₂, H₂O OsO4, H₂O₂ 1) Hg(OAc)2, H₂O 2) NaBH4 2) H* or OH- 1) RCOOOH 1) BH₂, THF 2) H₂O₂, OH, H₂O HBr ROOR, HBr H₂, Pd/Pt/Ni 13 03 H₂O₂ 12 11 10 5 CHCl3, NaOH, H₂O warm MnO4, OH or H+ cold MnO4, OH or H* 6 6 7 80

Draw products below

We want to make 400mL of 1x running buffer from the 20x stock. You will add __(ANSWER)___ mL of 20x stock to __(ANSWER)__mL water

16.5-1 What is the major product of the following reaction? CO₂Me X D CO₂Me CO₂Me CO₂Me CO₂Me CO₂Me CO₂Me CO₂Me CO₂Me CO₂Me CO₂Me CO₂Me heat

For this proton transfer reaction, draw in the appropriate product(s) and curved arrow(s). :0: H I I Ə. H 2.

The solubility of lead (II) chloride (PbCl2) is 1.6 ⋅⋅ 10-2 M. What is the Ksp of PbCl2? A) 1.6 ⋅ 10-2 B) 4.1 ⋅ 10-6 C) 3.1 ⋅ 10-7 D) 1.6 ⋅ 10-5 E) 5.0 ⋅ 10-4