Chemistry Lab 6

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Last updated 2:25 AM on 8/4/26

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16 Terms

1

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<p>This TMS (<strong>tetramethylsilane) is a ___________________________________ .</strong></p>

This TMS (tetramethylsilane) is a ___________________________________ .

reference point

2

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Of the following, what is important to take into account in any resonance on a spectrum.

A. integration

B. none of thes

C. all of these

D. splitting

E. chemical shift

c

3

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<p><span>More ________________________ means closer to ___________________________ atoms.</span><br><br>A. upfield, electronegative</p><p>B. downfield, electropositive</p><p>C. upfield, electropositive</p><p>D. downfield, electronegative</p>

More ________________________ means closer to ___________________________ atoms.

A. upfield, electronegative

B. downfield, electropositive

C. upfield, electropositive

D. downfield, electronegative

D

4

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<p>True or False. <br><br><span>Integration is showing us how many chemically equivalent neutrons are generating a peak.</span></p>

True or False.

Integration is showing us how many chemically equivalent neutrons are generating a peak.

false

5

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<p><span>The arrow is pointing to the A or B peak?</span></p>

The arrow is pointing to the A or B peak?

B

6

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<p><span>In spin-spin coupling, what will this molecule produce?</span></p>

In spin-spin coupling, what will this molecule produce?

doublet

7

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<p><span>The isotopes of which elements can spin at ½ nuclei?</span><br> </p><p>A. Hydrogen</p><p>B. All of these</p><p>C. Carbon</p><p>D. Nitrogen</p>

The isotopes of which elements can spin at ½ nuclei?

A. Hydrogen

B. All of these

C. Carbon

D. Nitrogen

B

8

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<p><span>If we could see inside of an atom, we would see a ___________, ____________ charged nucleus.</span></p>

If we could see inside of an atom, we would see a ___________, ____________ charged nucleus.

dense, positively

9

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<p>Why is this being done here at this step?</p><p> </p><p>A. To measure the sample</p><p>B. Remove any contaminants</p><p>C. To lighten the sample</p><p>D. Remove excess weight</p>

Why is this being done here at this step?

A. To measure the sample

B. Remove any contaminants

C. To lighten the sample

D. Remove excess weight

B

10

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<p><span>This molecule will represent how many peaks created from the NMR spectrum?</span></p>

This molecule will represent how many peaks created from the NMR spectrum?

5

11

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<p><span>How many different types of NMR machines were shown here in this video?</span></p>

How many different types of NMR machines were shown here in this video?

2

12

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<p><span>To what is the yellow arrow pointing?</span></p>

To what is the yellow arrow pointing?

the filter

13

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<p><span>When placed in an NMR machine, the nuclei line up and begin to spin due to what part of the machine?</span></p>

When placed in an NMR machine, the nuclei line up and begin to spin due to what part of the machine?

the magnet

14

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<p><span>What is important to do here at this step?</span></p>

What is important to do here at this step?

label your sample

15

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<p><span>How much solvent is used here?</span></p>

How much solvent is used here?

4cm of depth

16

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<p><span>What is actually creating these peaks (what is being measured)?</span></p>

What is actually creating these peaks (what is being measured)?

protons