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6.7 Neutralisation

Authored by AARON WEE SWEE LEE D20201095411

Chemistry

University

Used 4+ times

6.7 Neutralisation
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8 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the meaning of neutralization?

Reaction between an acid and metal to form salt and water only.

Reaction between an acid and an alkali to form salt and hydrogen gas only.

Reaction between an acid and an alkali to form salt and water only.

Reaction between acid and metal carbonate to form salt, carbon dioxide and water only.

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

State the changes in the methyl orange indicator inside the conical flask containing potassium hydroxide solution, KOH when it reaches end point.

Red to orange

Yellow to orange

Red to yellow

Yellow to orange

3.

FILL IN THE BLANK QUESTION

5 mins • 1 pt

50 cm3 of 0.75 mol dm–3 ammonia solution, NH3 is titrated with 1.0 mol dm–3 nitric acid, HNO3. What is the volume of 1.0 mol dm–3 nitric acid, HNO3 that is needed to neutralise the ammonia solution, NH3?

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Calculate the volume of 0.05 mol dm–3 hydrochloric acid, HCl that exactly neutralizes 25 cm3 of 0.1 mol dm–3 barium hydroxide solution, Ba(OH)2.

75 cm3

125 cm3

150 cm3

100 cm3

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Based on the following chemical equation, 20 cm3 monoprotic acid, HX reacts completely with 10 cm3 of 0.1 mol dm–3 potassium hydroxide solution, KOH.

HX(aq) + KOH(aq) → KX(aq) + H2O(l)

What is the molarity of this acid?

0.05 mol cm–3

5x10-2 mol dm–3

0.005 mol dm–3

0.10 mol dm–3

6.

FILL IN THE BLANK QUESTION

5 mins • 1 pt

25 cm3 of 0.2 mol dm–3 sodium hydroxide solution, NaOH is titrated with 0.1mol dm–3 sulphuric acid, H2SO4. What is the volume of sulphuric acid, H2SO4 needed to neutralise sodium hydroxide solution, NaOH?

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

50 cm3 of nitric acid, HNO3 completely neutralises 50 cm3 of 0.25 mol dm–3 calcium hydroxide, Ca(OH)2. Calculate the molarity of the nitric acid, HNO3.

0.005 mol dm–3

0.01 mol dm–3

0.50 mol dm–3

1.00 mol dm–3

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