[DavidZ]

Hi 

Regarding the ¹H NMR spectrum of propan-1-ol:

How many peaks will the two CH₂ groups be split into? Is there somewhere online where I can view the ¹H NMR spectrum of propan-1-ol?

[DrCMS]

How many peaks will the two CH₂ groups be split into?

What do you think?  What causes a peak to split?  How many other different hydrogens are next to each CH₂ group?

Is there somewhere online where I can view the ¹H NMR spectrum of propan-1-ol?

If you search you'll find various databases of NMRs but do you just want the answer or to learn how to work it out for yourself?

[DavidZ]

Well for the CH₂ next to the CH₃ it would be 6 since it has 5 adjacent protons. For the CH₂ next to the OH it would be 4 since there are 3 adjacent protons.

[sjb]

Well for the CH₂ next to the CH₃ it would be 6 since it has 5 adjacent protons. For the CH₂ next to the OH it would be 4 since there are 3 adjacent protons.

Are all the protons the same?

[DavidZ]

Are all the protons the same?

Some are. The ones bonded to that same carbon atom will be. But will that make a difference?

Though I will change my answer: The CH₂ next to the OH will be split into 3 since OH does not cause splitting.

http://imgur.com/5d6r7s2

I tracked down the actual spectrum which does seem to match up with my predictions.