Lab: Titration Answers

The lab procedure you just read involved several factors, listed below. Some were variable, and some were constant. Use the drop-down menus to label each factor with V for variable or C for constant. molarity of HCl used as analyte

A

C

B

V

2

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molarity of NaOH used as titrant

A

C

B

V

3

volume of HCl

A

C

B

V

4

volume of NaOH

A

C

B

V

5

temperature of HCl

A

C

B

V

6

temperature of NaOH

A

C

B

V

7

After you compute the of titrant NaOH, you will copy that value into the row of the

A

volume

B

moles

C

mass

8

data table for the of analyte HCl.

A

volume

B

moles

C

mass

9

The molarity of the HCl would be: M

A

0.002

B

0.032

C

0.317

D

3.170

10

What is true about working with burets?

A

You can easily break a buret if it is filled too high.

B

No graduation marks appear above the 0 mL mark.

C

The stopcock will open if you overfill the buret.

11

Did you read the Student Guide carefully?

A

yes

B

no

12

The lab procedure you just read involved several factors, listed below. Some were variable, and some were constant. Use the drop-down menus to label each factor with V for variable or C for constant. molarity of HCl used as analyte

A

C

B

V

13

What should you do if you accidentally splash NaOH or HCl onto your skin or clothing while pouring it into the buret? Check all that apply.

A

Try to save the NaOH for recycling purposes.

B

Tell your teacher about the accident right away.

C

Call 911 immediately.

D

Rinse the area with water.

14

Read the buret shown to the right. The best reading is mL.

A

20.9

B

21.0

C

20.97

D

21.03

15

molarity of NaOH used as titrant

A

C

B

V

16

volume of HCl

A

C

B

V

17

volume of NaOH

A

C

B

V

18

temperature of HCl

A

C

B

V

19

temperature of NaOH

A

C

B

V

20

After you compute the of titrant NaOH, you will copy that value into the row of the

A

volume

B

moles

C

mass

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