NMR (1H)

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Chemistry

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9th - 12th Grade

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Owen Phillips

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6 Slides • 25 Questions

NMR spectroscopy

Multiple Select

Which can be used as a solvent in NMR spectroscopy?

Water

Ethanol

Tetrachloromethane

Deuterated trichloromethane

Multiple Choice

What is the chemical used as the reference for NMR spectroscopy?

Water

Methane

Tetramethylsilane

2,4-DNPH

Multiple Choice

what is the benefit of the reference chemical being inert?

Does not react with chemical being tested.

Easy to separate from chemical being tested.

Peak is unlikely to be in the same region as any from the chemical being tested.

Reference chemical produces a single clear peak

Multiple Choice

what is the benefit of the reference chemical being volatile?

Easy to separate from chemical being tested.

Peak is unlikely to be in the same region as any from the chemical being tested.

Reference chemical produces a single clear peak

Does not react with chemical being tested.

Multiple Choice

what is the benefit of the reference chemical being non-polar?

Peak is unlikely to be in the same region as any from the chemical being tested.

Easy to separate from chemical being tested.

Reference chemical produces a single clear peak

Does not react with chemical being tested.

Multiple Choice

what is the benefit of the reference chemical having 12 hydrogens in 1 environment?

Reference chemical produces a single clear peak

Easy to separate from chemical being tested.

Peak is unlikely to be in the same region as any from the chemical being tested.

Does not react with chemical being tested.

Multiple Choice

What do the number of peaks in an NMR spectra tell you?

The number of environments

The proportion of atoms in an environment

How deshielded atoms are in the environment

The number of hydrogens in the next environment

Multiple Choice

What does the height of the peaks in a 1H NMR spectra tell yo?

The proportion of atoms in an environment

The number of environments

How deshielded atoms are in the environment

The number of hydrogens in the next environment

Multiple Choice

What does the chemical shift of a peak in an NMR spectra tell you?

How deshielded atoms are in the environment

The number of environments

The proportion of atoms in an environment

The number of hydrogens in the next environment

Multiple Choice

What does the splitting pattern in a 1H NMR spectra tell you?

The number of hydrogens in the next environment

The number of environments

The proportion of atoms in an environment

How deshielded atoms are in the environment

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Integration 2:3:3

Deduce the structure

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Integration 3:2:3

Deduce the structure

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Integration 3:2:3

Deduce the structure

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Integration 3:2:3

Deduce the structure

How many peaks would you get for the hydrogens in the molecule CH₂ClCH₂Br and how would they be split?

How many peaks would you get for the hydrogens in the molecule CH₂ClCH₂Cl, and how would they be split?

NMR spectroscopy

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