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Chemistry

Chemistry · Quick practice · answer shown after each question

Indicators and titration

Question 1 of 10

Question 1 of 10

20.0 cm³ of 0.10 mol/dm³ HCl neutralises 25.0 cm³ of NaOH solution. What is the concentration of the NaOH?

Question 2 of 10

Question 2 of 10

25.0 cm³ of Na₂CO₃ solution needs 20.0 cm³ of 0.1 mol/dm³ HCl for complete reaction. The concentration of Na₂CO₃ is

Question 3 of 10

Question 3 of 10

Which indicator suits a titration of a strong acid with a weak base?

Question 4 of 10

Question 4 of 10

Phenolphthalein is

Question 5 of 10

Question 5 of 10

Phenolphthalein is suitable for titrating a weak acid with a strong base because

Question 6 of 10

Question 6 of 10

20.0 cm³ of 0.05 mol/dm³ H₂SO₄ neutralises x cm³ of 0.10 mol/dm³ NaOH. Find x.

Question 7 of 10

Question 7 of 10

Methyl orange in acid is

Question 8 of 10

Question 8 of 10

25 cm³ of 0.1 mol/dm³ NaOH is neutralised by 0.1 mol/dm³ HCl. The volume of acid needed is

Question 9 of 10

Question 9 of 10

Phenolphthalein in alkaline solution is

Question 10 of 10

Question 10 of 10

The indicator best for titrating a strong acid with a weak base is

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.