Which of the following compounds will form hydrogen bonds with a solvent such as ethanol?

Check all that apply

1) #CH_3 CH_2 O CH_2 CH_2 OH#
2) #CH_3 CH_2 CH_2 CH_2 BR#
3) #CH_3 CH_2 CH_2 NH CH_3#
4) #CH_3 CH_2 CH_2 COOH#
5) #CH_3 CH_2 CH_2 CH_2 F#

Question

1) #CH_3 CH_2 O CH_2 CH_2 OH#
2) #CH_3 CH_2 CH_2 CH_2 BR#
3) #CH_3 CH_2 CH_2 NH CH_3#
4) #CH_3 CH_2 CH_2 COOH#

Isaac Aronson · Accepted Answer

All but #"number 2"# So which are the molecules with polar functionality....? Clearly, #1# is an hydroxyl ether, and #4# is a carboxylic acid....and #3# is an amine.... I am willing to bet that #2# would also have some solubility in ethanol. You would not know until you have done the experiment.

Nolan Allen · Answer

undefined 1) CH₃CH₂OCH₂CH₂OH
4) CH₃CH₂CH₂COOH

HIX Tutor · Answer

undefined Let's think about what hydrogen bonds are. Do you remember what makes a hydrogen bond?

Hydrogen bonds usually happen when a hydrogen atom is attached to highly electronegative atoms like oxygen or nitrogen. Ethanol has an -OH group, which can form hydrogen bonds.

Now, let's check each compound:

1) **CH₃ CH₂ O CH₂ CH₂ OH**
   - Does it have an -OH or -NH group? Yes! It has an -OH. So, it can form hydrogen bonds. ✔️

2) **CH₃ CH₂ CH₂ CH₂ BR**
   - Does it have an -OH or -NH group? No, it has Br. It won't form hydrogen bonds. ✖️

3) **CH₃ CH₂ CH₂ NH CH₃**
   - Does it have an -OH or -NH group? Yes, it has -NH. It can form hydrogen bonds. ✔️

4) **CH₃ CH₂ CH₂ COOH**
   - Does it have an -OH or -NH group? Yes, it has -COOH (which can also form hydrogen bonds). So, it can form hydrogen bonds. ✔️

5) **CH₃ CH₂ CH₂ CH₂ F**
   - Does it have an -OH or -NH group? No, it has F. It won’t form hydrogen bonds. ✖️

So, which compounds can form hydrogen bonds with ethanol? Can you list them for me?

Which of the following compounds will form hydrogen bonds with a solvent such as ethanol? Check all that apply 1) #CH_3 CH_2 O CH_2 CH_2 OH# 2) #CH_3 CH_2 CH_2 CH_2 BR# 3) #CH_3 CH_2 CH_2 NH CH_3# 4) #CH_3 CH_2 CH_2 COOH# 5) #CH_3 CH_2 CH_2 CH_2 F#

1) #CH_3 CH_2 O CH_2 CH_2 OH# 2) #CH_3 CH_2 CH_2 CH_2 BR# 3) #CH_3 CH_2 CH_2 NH CH_3# 4) #CH_3 CH_2 CH_2 COOH#

1) #CH_3 CH_2 O CH_2 CH_2 OH#
2) #CH_3 CH_2 CH_2 CH_2 BR#
3) #CH_3 CH_2 CH_2 NH CH_3#
4) #CH_3 CH_2 CH_2 COOH#