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Titration calculations

Total questions: 15

Worksheet time: 48mins

Name
Class
Date
1.

What is the concentration of a HCl solution if 24.7 cm3 of HCl are completely neutrilized by 35.8 cm3 of a 0.25 M NaOH solution?

a)

0.362 M

b)

3.62 M

c)

0.172 M

d)

35.4 M

2.

What mass of KHP will be completely neutrilized by 32.57 cm3 0.175 M standard NaOH solution? The Molar Mass of KPH is 204.22 g/mol.

a)

23.28 g KHP

b)

1.164 g KHP

c)

11.64 g KHP

d)

2.328 g KHP

3.

Calculate the volume of a 0.15 M Ba(OH)2 solution required to completely neutralize 45 cm3 of a 0.29 M HNO3 solution.

a)

43.5 cm3

b)

87 cm3

c)

23.3 cm3

d)

51.9 cm3

4.

If it takes 54 cm3 of 0.1 M NaOH to neutralize 125 cm3 of an HCl solution, what is the concentration of HCl?

a)

0.043 M

b)

23.148 M

c)

0.231 M

5.

If it takes 25 cm3 of 0.05 M HCl to neutralize 345 cm3 of NaOH solutions, what is the concentration of the NaOH solution?

a)

0.004 M

b)

276 M

c)

0.036 M

6.

How many milliliters of 0.360 M H2SO4 are required to neutralize 25 cm3 of 0.1 M Ba(OH)2?

a)

6.944 cm3

b)

0.144 cm3

c)

0.069 cm3

7.

What is the equivalence point of a titration?

a)

Where the amount of acid and base are balanced according to the equation

b)

Where there is no base

c)

At the end

8.

A 50.0 cm3 sample of Ca(OH)2 is neutralized by 300.0 cm3 of HCl solution with a pH of 1.3. Calculate the molarity of the Ca(OH)2 solution.

a)

1.0 M

b)

0.50 M

c)

0.15 M

d)

0.30 M

9.
For the acid-base titration combination of NaOH with 0.79 mol HCl, find the number of moles of NaOH that would be the chemically equivalent amount of HCl.
a)
0.79 mol
b)
1.6 mol
c)
0.38 mol
d)
3.2 mol
10.

The reaction of perchloric acid (HClO4) with lithium hydroxide (LiOH) is described by the equation

HClO4 + LiOH → LiClO4 + H2O

Suppose 100 cm3 of perchloric acid is neutralized by exactly 50.0 cm3 of 1.0 M of lithium hydroxide. What is the concentration of the perchloric acid?

a)

0.5 M

b)

50 M

c)

2.0 M

d)

1.0 M

11.

The reaction of sulfuric acid (H2SO4) with Sodium hydroxide (NaOH) is described by the equation:

H2SO4 + 2NaOH → Na2SO4 + 2H2O

Suppose 50 cm3 of NaOH with unknown concentration is placed in a flask with bromthymol blue indicator. A solution of 0.20 M H2SO4 is dripped into the NaOH solution. After exactly 25.0 cm3 of H2SO4 is added, the indicator changes from blue to yellow. What is the concentration of the KOH?

a)

0.20 M

b)

4.0 M

c)

2.5 M

d)

0.4 M

12.

The reaction of hydrochloric acid (HCl) with ammonia (NH3) is described by the equation:

HCl + NH3 → NH4Cl

A student is titrating 100.0 cm3 of 0.10 M NH3 with 0.5 M HCl. How much hydrochloric acid must be added to react completely with the ammonia?

a)

20.0 cm3

b)

500.0 cm3

c)

100.0 cm3

d)

5.0 cm3

13.

A 50.0 mL sample of Ca(OH)2 is neutralized by 300.0 cm3 of HCl solution with a pH of 1.3. Calculate the molarity of the Ca(OH)2 solution.

a)

1.0 M

b)

0.50 M

c)

0.15 M

d)

0.30 M

14.

30cm3 of NaOH is neutralised by 12.3cm3 of 0.2mol/dm3 HCl. What is the concentration of the NaOH.

a)

82 mol/dm3

b)

0.82 mol/dm3

c)

0.49 mol/dm3

d)

0.082 mol/dm3

15.

30cm3 of NaOH is neutralised by 12.3cm3 of 0.2mol/dm3 HCl. What is the concentration of the NaOH.

a)

82 mol/dm3

b)

0.82 mol/dm3

c)

0.49 mol/dm3

d)

0.082 mol/dm3