November 16, 2024, 03:26:07 PM
Forum Rules: Read This Before Posting


Topic: Organic Chemistry Homework Problems attempted but not right  (Read 2974 times)

0 Members and 1 Guest are viewing this topic.

Offline Fxykh13

  • Very New Member
  • *
  • Posts: 1
  • Mole Snacks: +0/-0
Organic Chemistry Homework Problems attempted but not right
« on: February 07, 2010, 06:32:52 PM »
1. What type of product does each of these three products upon reaction K2Cr2O7 make? t-butyl alcohol, s-butyl alcohol, and butyl alcohol?
(For t-butyl I put no reaction, s-butyl ketone, and butyl alcohol I put aldehyde. Not sure if those were correct.)

2. How can benzene be converted to the following? benzoic acid, phenol, tribromo benzene, and bromobenzene. The choices to choose from are; sulfuric & nitric acids at same time, hydrogen with Pt, excess bromine with Fe Cl3 plus heat bromine with FeCl3, or not possible (with rxns so far)
(I put not possible, hydrogen with PT, excess bromine with FeCl3 plus heat, and bromine with Fe Cl3

3 How many total isomers (structural, constitutional, and stereo) of bromo phenol exist? I put 6 again not sure if that is correct.

4 How many sterioisomers of TNT exist? I put 2. not sure if correct

5 Primary phenols can be oxidized to carboxylic acids true or false? I put true. Is that correct?

6 Because they are structural isomers, dimethel elther and ethanol undergo similar reactions, true or false? Is this false?

7 for these three choose one of the 3 degree Celsius. 103 C, 74 C, 77 C
1-pentanol, pentane, 1-pentanethion. all three need a degree to it. My teacher didn't specify what these temps are though on the problem

8 The boiling point of alcohols decreses with increasing molecular weight? true of false? I put true

9 start with propene. First treat with water and sulfuric acid. Second treat with potassium dichromate. What type of product do you get? choose from aldehyde, ketone, carboxyllic acid, ester, no reaction, or ether.

Offline orgopete

  • Chemist
  • Sr. Member
  • *
  • Posts: 2636
  • Mole Snacks: +213/-71
    • Curved Arrow Press
Re: Organic Chemistry Homework Problems attempted but not right
« Reply #1 on: February 07, 2010, 07:17:24 PM »
1) the aldehyde will continue oxidizing to the carboxylic acid.

2) the second will also not be possible with those reagents.

3) I suggest you draw phenol and then see how many ways you can add a bromine to the unsubstituted carbons. If in question, if the name is the same, it is the same compound.

4) Do as #3.

5) false

6) F

7) Search

8) Look them up, methanol, ethanol, propanol

9) ketone

What type of class is this for? What textbook are you using?
Author of a multi-tiered example based workbook for learning organic chemistry mechanisms.

Sponsored Links