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WorksheetsAnalytical Chemistry: Monoprotic Acid-Base Titration
Total questions: 10
Worksheet time: 25mins
Name
Class
Date
1.
Which of the following is an impossible combination in the titration of alkali mixture?
a)
sodium hydroxide only
b)
sodium carbonate only
c)
sodium bicarbonate only
d)
sodium carbonate and sodium bicarbonate
e)
sodium bicarbonate and sodium hydroxide
2.
Which indicator could be used to titrate aqueous NH3 with HCl solution?
a)
A
b)
B
c)
C
d)
D
e)
E
3.
The following titration curve is the kind of curve expected for the titration of a ____ acid with a ____ base.
a)
strong, strong
b)
weak, strong
c)
strong, weak
d)
weak, weak
e)
none of these
4.
A 15.00 g sample containing mixed alkali and other inert components was dissolved and diluted to 300 mL with water. A 20 mL aliquot was titrated with 5.02 mL of 0.5352 M HCl to reach PHP endpoint. another 20 mL aliquot was titrated to the BCG endpoint, using up 18.87 mL of titrant in the process. How much volume of titrant was needed to reach the second endpoint starting from the first endpoint?Answer in two decimal places.
a)
13.85
b)
14.98
c)
15.44
d)
15.76
e)
16.28
5.
Which of the following combinations cannot produce a buffer solution?
a)
HNO2 and NaNO2
b)
HCN and NaCN
c)
HClO4 and NaClO4
d)
NH3 and (NH4)2SO4
e)
NH3 and NH4Br
6.
Consider the titration of 100.0 mL of 0.100 M NaOH with 1.00 M HBr. Find the pH at the following volumes of acid added: 0 mL
(a)
7.
Consider the titration of 100.0 mL of 0.100 M NaOH with 1.00 M HBr. Find the pH at the following volumes of acid added: 9.90 mL
(a)
8.
Consider the titration of 100.0 mL of 0.100 M NaOH with 1.00 M HBr. Find the pH at the following volumes of acid added: 10.00 mL
(a)
9.
Consider the titration of 100.0 mL of 0.100 M NaOH with 1.00 M HBr. Find the pH at the following volumes of acid added: 10.10 mL
(a)
10.
Consider the titration of 100.0 mL of 0.100 M NaOH with 1.00 M HBr. Find the pH at the following volumes of acid added: 15.00 mL
(a)
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