# data[].attributes.body
Proton NMR
Gives 3 types of information

1. Number of peaks gives the number of hydrogen environments

2. Ratio of the area under the peals gives the ratio of the numbers of hydrogen atoms in different environments

3. Information on the environments of the hydrogen atom is obtained from the values of the chemical shifts under the peaks

# data[].attributes.body
Gives us two types of information:
1. number of peaks tells us how many different carbon environments
2. chemical shifts tell us the type of carbon environments we have

peak at ~ 𝛿18 - c - c
*how to answer the NMR question*

# data[].attributes.body
Blasting a sample with electrons in a mass spectrometer creates positively charged fragments.
Using mass spectra we can:
1. get evidence for the structure of a molecule in a sample
2. estimate the kinds of fragments that will be made, if we already know the structure of the molecule in the sample
Plot relative abundance or intensity(y-axis) against mass/charge ratio(x-axis).
The ion with highest m/z is the parent or molecular ion. This gives you the Mr of the compound.
If only 1 electron is removed, then the m/z ratio is really the relative mass.

# data[].attributes.body
Absorption at ~3300 - 3500cm1 meaning O-H bond.
*how to answer the infrared question*

# data[].attributes.body
All organic molecules absorb infra-red wavelengths. This causes bonds to vibrate. Each vibration type absorbs characteristic frequencies, expressed as wavenumbers(measured in cm¹)