Chemistry Lab 11

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Last updated 2:18 AM on 8/6/26
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15 Terms

1
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<p><span>To what piece of equipment is this arrow pointing?</span></p>

To what piece of equipment is this arrow pointing?

volumetric flasks

2
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<p><span>How many mL of water are being added here?</span></p>

How many mL of water are being added here?

100

3
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<p>True or False<br><br><span>A very precise amount of water was added to this beaker before being poured.</span></p>

True or False

A very precise amount of water was added to this beaker before being poured.

False

4
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<p>True or False<br><br><span>The arrow is pointing to the Vitamin C solution.</span></p>

True or False

The arrow is pointing to the Vitamin C solution.

True

5
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<p>True or False<br><span>The arrow is pointing to the meniscus.&nbsp;</span></p>

True or False
The arrow is pointing to the meniscus. 

true

6
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<p>In this lab, what is the correct sequence of events?</p><p>&nbsp;</p><p>A. Transferring Ascorbic acid, Filling the buret with Iodine, Titration of a juice sample, Titration of Ascorbic acid</p><p>&nbsp;</p><p>B. Filling the buret with Iodine, Titration of Ascorbic acid, Titration of a juice sample, Transferring Ascorbic acid</p><p>&nbsp;</p><p>C. Titration of a juice sample, Transferring Ascorbic acid, Filling the buret with Iodine, Titration of Ascorbic acid</p><p>&nbsp;</p><p>D. Transferring Ascorbic acid, Filling the buret with Iodine, Titration of Ascorbic acid, Titration of a juice sample</p>

In this lab, what is the correct sequence of events?

 

A. Transferring Ascorbic acid, Filling the buret with Iodine, Titration of a juice sample, Titration of Ascorbic acid

 

B. Filling the buret with Iodine, Titration of Ascorbic acid, Titration of a juice sample, Transferring Ascorbic acid

 

C. Titration of a juice sample, Transferring Ascorbic acid, Filling the buret with Iodine, Titration of Ascorbic acid

 

D. Transferring Ascorbic acid, Filling the buret with Iodine, Titration of Ascorbic acid, Titration of a juice sample

D

7
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<p>True or False<br><br><span>Towards the end of a Titration, it is important to only allow the titrate to slowly drip out of the pipette.</span></p>

True or False

Towards the end of a Titration, it is important to only allow the titrate to slowly drip out of the pipette.

true

8
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<p><span>In this lab video, it is suggested that the proper reading of this burette is:</span><br><br>&nbsp;</p><p>A. 3.7</p><p>B. 3.65</p><p>C. neither of these</p><p>D. both of these</p>

In this lab video, it is suggested that the proper reading of this burette is:

 

A. 3.7

B. 3.65

C. neither of these

D. both of these

D

9
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<p><span>One should numerically record from the _____________ of the _______________.</span><br><br>&nbsp;</p><p>A. top, gas bubble</p><p>B. top, pipette</p><p>C. bottom, pipette</p><p>D. bottom, gas bubble</p>

One should numerically record from the _____________ of the _______________.

 

A. top, gas bubble

B. top, pipette

C. bottom, pipette

D. bottom, gas bubble

C

10
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<p><span>The extreme color change has a term, what specifically is this phenomena called?</span></p>

The extreme color change has a term, what specifically is this phenomena called?

overshoot

11
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<p>What is being placed here?</p><p>&nbsp;</p><p>A. 10mL of sodium bicarbonate</p><p>B. 20 drops of acetic acid</p><p>C. 20mL of acetic acid</p><p>D. 30 drops of iodine</p>

What is being placed here?

 

A. 10mL of sodium bicarbonate

B. 20 drops of acetic acid

C. 20mL of acetic acid

D. 30 drops of iodine

B

12
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<p>How might one remove the air bubbles found here?</p><p>&nbsp;</p><p>A. Add indicator dye</p><p>B. Open and close the stopcock</p><p>C. Refill the pipette</p><p>D. Add iodine</p>

How might one remove the air bubbles found here?

 

A. Add indicator dye

B. Open and close the stopcock

C. Refill the pipette

D. Add iodine

B

13
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<p>What is in this solution?</p><p>&nbsp;</p><p>A. Ascorbic acid + acetic acid</p><p>B. Iodine + sodium bicarbonate</p><p>C. Iodine only</p><p>D. Iodine + ascorbic acid</p>

What is in this solution?

 

A. Ascorbic acid + acetic acid

B. Iodine + sodium bicarbonate

C. Iodine only

D. Iodine + ascorbic acid

D

14
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<p>To what is this green arrow pointing?</p><p>&nbsp;</p><p>A. The meniscus</p><p>B. Hydrochloric acid</p><p>C. A salt solution</p><p>D. 25mL of liquid</p>

To what is this green arrow pointing?

 

A. The meniscus

B. Hydrochloric acid

C. A salt solution

D. 25mL of liquid

A

15
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<p>To what is this green arrow pointing?</p><p>&nbsp;</p><p>A. Iodine</p><p>B. Sodium Nitrate</p><p>C. Hydrochloric acid</p><p>D. Unknown solution</p>

To what is this green arrow pointing?

 

A. Iodine

B. Sodium Nitrate

C. Hydrochloric acid

D. Unknown solution

A