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Titration
Quiz 1
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Q.1
30cm3 of NaOH is neutralised by 12.3cm3 of 0.2mol/l HCl. What is the concentration of the NaOH.
82 mol/l
0.82 mol/l
0.49 mol/l
0.082 mol/l
Q.2
The indicator used in Mohr's method is
0.2% potassium dichromate, K2CrO7
2% potassium dichromate, K2CrO7
0.02% potassium dichromate, K2CrO7
25 sodium dichromate, K2CrO7
Q.3
The following are examples of protogenic solvents, EXCEPT
sulfuric acid
hydrochloric acid
nitric acid
chloroform
Q.4
Which solution would you draw using a pipette from the volumetric flask
Standard solution
Unknown concentration solution
Indicator
Q.5
Choose the type of titration that is also known as argentometric titration
precipitation titration
complexometric titration
acid base titration
redox titration
Q.6
How many moles of Ca(OH)2 are needed to neutralize three moles of HCl?
8
1.5
6
3
Q.7
I am titratingHCl withNaOH. I have 25mL of HCl. How much NaOH will I need?
2.5mL
5mL
25mL
50mL
Q.8
The reaction of hydrochloric acid (HCl) with ammonia (NHis described by the equation:HCl + NH3 → NH4ClA student is titrating 100.0 mL of 0.M NH3 with 0.5 M HCl. How much hydrochloric acid must be added to react completely with the ammonia?
20.0mL
500.0mL
100.0mL
5.0mL
Q.9
The reaction of sulfuric acid (H2SOwith Sodium hydroxide (NaOH) is described by the equation:H2SO4 + 2NaOH → Na2SO4 + 2H2OSupposemL of NaOH with unknown concentration is placed in a flask with bromthymol blue indicator. A solution of 0.M H2SO4 is dripped into the NaOH solution. After exactly 25.0 mL of H2SO4 is added, the indicator changes from blue to yellow. What is the concentration of the KOH?
0.20M
4.0M
2.5M
0.4M
Q.10
The reaction of perchloric acid (HClOwith lithium hydroxide (KOH) is described by the equationHClO4 + KOH → KClO4 + H2OSupposemL of perchloric acid is neutralized by exactly 50,0 mL of 1.0 M of Potassium hydroxide. What is the concentration of the perchloric acid?
0.5M
50M
2.0M
1.0M
Q.11
I have 50cm3 of 0.HCl. How many moles of NaOH will I need to neutralise it?
5
0.5
0.05
0.005
Q.12
What mass of KHP will be completely neutrilized by 32.ml 0.M standard NaOH solution? The Molar Mass of KPH is 204.g/mol.
23.28 g KHP
1.164 g KHP
11.64 g KHP
2.328 g KHP
Q.13
Calculate the volume of a 0.M Ba(OH)2 solution required to completely neutralizeml of a 0.M HNO3 solution.
43.5 ml
87 ml
23.3 ml
51.9 ml
Q.14
What is the molarity of a NaOH solution if 11.6 mL of 3 M HCl was used to neutralizemL of NaOH?
1.392 M
0.155 M
0.718 M
Q.15
How many milliliters of 0.M H2SO4 are required to neutralizemL of 0.1 M Ba(OH)2?
6.944 mL
0.144 mL
0.069 mL
Q.16
If it takesmL of 0.5 M Ca(OH)2 to neutralizemL of sulfuric acid, what is the concentration of the acid?
0.2 M
5 M
0.5 M
Q.17
Which of these titres are concordant?
12.3cm3
12.0cm3
Both A & B
12.4cm3
Q.18
Pipette is washed with
Tap water
Distilled water
Solution to contain
Q.19
Burette is washed with
Tap water
Distilled water
Solution to contain
Q.20
What is placed under the conical flask during a titration
Heat proof mat
White tile
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