Organic Chemistry I |
Homework 4 |
Professor Carl C. Wamser |
Carey, end-of-chapter problems
ARIS problems
1. Given that Kw = [H+] [OH-] = 10-14 , explain
why the pKa of H2O is cited as 15.7 and the pKa of H3O+
as -1.7 .
2. The pKa of CH3OH2+ (protonated methanol) is -2.2. Predict the preferred
direction of an equilibrium acid-base
reaction between H3O+ and CH3OH.
3. Write a complete mechanism for the SN1 reaction of t-butyl alcohol with HBr.
4. Write a complete mechanism for the SN2 reaction of HI with methanol.