Abz98
Badges: 1
Rep:
?
#1
Report Thread starter 5 years ago
#1
Can someone help me understand how to implement these two methods into a Question, in particular an OCR question?

I understand the concept of these methods, but I don't know how to use it in a Question in order to get full marks and how to differentiate between the two - For example: A comparison question.

Thanks!
0
reply
username986184
Badges: 3
Rep:
?
#2
Report 5 years ago
#2
(Original post by Abz98)
Can someone help me understand how to implement these two methods into a Question, in particular an OCR question?

I understand the concept of these methods, but I don't know how to use it in a Question in order to get full marks and how to differentiate between the two - For example: A comparison question.

Thanks!
Have you looked at an NMR question and the corresponding mark scheme in past papers?
0
reply
Abz98
Badges: 1
Rep:
?
#3
Report Thread starter 5 years ago
#3
Yup! Some papers just say ' 'compound A' has 4 peaks' - 2 marks..
0
reply
Mimi97
Badges: 5
Rep:
?
#4
Report 5 years ago
#4
I do AQA but I assume the principles of NMR questions are similar. It's mostly just deducing structural formula of a compound using its NMR data. Or deciding which NMR spectrum matches to which compound. It's all quite fun, if you have enough time to figure it out like a puzzle, that is. xD
0
reply
username986184
Badges: 3
Rep:
?
#5
Report 5 years ago
#5
(Original post by Abz98)
Yup! Some papers just say ' 'compound A' has 4 peaks' - 2 marks..
Give me an example paper.
0
reply
username986184
Badges: 3
Rep:
?
#6
Report 5 years ago
#6
(Original post by Mimi97)
I do AQA but I assume the principles of NMR questions are similar. It's mostly just deducing structural formula of a compound using its NMR data. Or deciding which NMR graph matches to which compound. It's all quite fun, if you have enough time to figure it out like a puzzle, that is. xD
Perleeze Mimi97. NMR Graph! It's a spectrum.
0
reply
Abz98
Badges: 1
Rep:
?
#7
Report Thread starter 5 years ago
#7
An Example:
Attached files
0
reply
Mimi97
Badges: 5
Rep:
?
#8
Report 5 years ago
#8
(Original post by TeachChemistry)
Perleeze Mimi97. NMR Graph! It's a spectrum.
Whoops, let me off please, it's been a looong day juggling chemistry and psychology. xD
0
reply
Abz98
Badges: 1
Rep:
?
#9
Report Thread starter 5 years ago
#9
Where would all of the four peaks be?
0
reply
Abz98
Badges: 1
Rep:
?
#10
Report Thread starter 5 years ago
#10
(Original post by TeachChemistry)
Give me an example paper.
Above^^
0
reply
username986184
Badges: 3
Rep:
?
#11
Report 5 years ago
#11
(Original post by Abz98)
Above^^
Do you understand the fact that carbons in different environments can have different chemical shifts?
1
reply
Mimi97
Badges: 5
Rep:
?
#12
Report 5 years ago
#12
(Original post by Abz98)
Where would all of the four peaks be?
Name:  image.jpg
Views: 251
Size:  502.7 KB
0
reply
spiritless98
Badges: 19
Rep:
?
#13
Report 5 years ago
#13
Name:  ImageUploadedByStudent Room1451586017.154116.jpg
Views: 245
Size:  46.6 KB

See if this helps


Posted from TSR Mobile
0
reply
Abz98
Badges: 1
Rep:
?
#14
Report Thread starter 5 years ago
#14
(Original post by TeachChemistry)
Do you understand the fact that carbons in different environments can have different chemical shifts?
Yup - These can be seen in a Spectra
0
reply
username986184
Badges: 3
Rep:
?
#15
Report 5 years ago
#15
(Original post by Abz98)
Yup - These can be seen in a Spectra
The two people above have shown you the assignment so that should help.
0
reply
Abz98
Badges: 1
Rep:
?
#16
Report Thread starter 5 years ago
#16
Aha Cheers!
0
reply
Abz98
Badges: 1
Rep:
?
#17
Report Thread starter 5 years ago
#17
So, the Chemical Shifts would be between:
3x 4-56
1x 160 - 210
??
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

Who is winning Euro 2020

France (107)
27.58%
England (132)
34.02%
Belgium (30)
7.73%
Germany (41)
10.57%
Spain (8)
2.06%
Italy (34)
8.76%
Netherlands (13)
3.35%
Other (Tell us who) (23)
5.93%

Watched Threads

View All