wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Chemistry Form 4; Acid & Base - Neutralization

Total questions: 15

Worksheet time: 13mins

Name
Class
Date
1.

A farmer found that the soil in his garden is too acidic.

Which substance is suitable to reduce the acidity of the soil?

Seorang petani mendapati tanah di kebunnya sangat berasid.

Bahan manakah yang sesuai untuk mengurangkan keasidan tanahnya?

a)

Sodium chloride

Natrium klorida

b)

Calcium oxide

Kalsium oksida

c)

Barium nitrite

Barium nitrat

d)

Potassium iodide

Kalium iodide

2.

The following equation represents a neutralisation reaction.

Persamaan berikut mewakili tindak balas peneutralan.


Acid + Base ----> Salt + Water

Asid + Bes ----> Garam + Air


Which of the following pairs of reactants produce a neutralization reaction?

Antara pasangan bahan tindak balas berikut, yang manakah merupakan tindak balas peneutralan?

a)

Sulphuric acid and calcium carbonate

Acid sulfurik dan kalsium karbonat

b)

Nitric acid and magnesium oxide

Asid nitrik dan magnesium oksida

c)

Hydrochloric acid and sodium sulphate

Asid hidroklorik dan natrium sulfat

d)

Hydrochloric acid and sodium sulphate

Asid hidroklorik dan natrium sulfat

3.

Which of the following is a suitable indicator to determine the end point for the neutralisation reaction between 0.1 mol dm-3sulphuric acid and 0.1 mol dm-3 sodium hydroxide solution?


Antara berikut yang manakah merupakan petunjuk yang sesuai untuk menentukan takat akhir bagi tindakbalas peneutralan di antara asid sulfurik 0.1 moldm-3 dan larutan natrium hidroksida 0.1 mol dm-3?

a)

Red litmus paper

Kertas litmus biru

b)

Blue litmus paper

Kertas litmus merah

c)

Phenolphtalein

Fenolftalein

d)

Tetrachloromethane

Tetraklorometana

4.

40 cm3 of 1.0 mol dm-3 hydrochloric acid is neutralized by 25cm3 of barium hydroxide solution. What is the molarity of barium hydroxide?


40 cm3asid hidroklorik 1.0 mol dm-3 dineutralkan oleh 25cm3 larutan barium hidroksida.

Berapakah kemolaran larutan barium hidroksida?

a)

0.625 mol dm-3

b)

0.800 mol dm-3

c)

1.600 mol dm-3

d)

3.500 mol dm-3

5.

A dibase acid, H2SO4 has the concentration of 0.5 mol dm-3. What is the volume of potassium hydroxide, KOH, 1.0 mol dm-3 that can neutralize 25.0 cm3 of the H2SO4 acid solution?

Satu acid dwibes, H2SO4mempunyaikepekatan 0.5 mol dm-3 .Berapakah isipadu kalium hidroksida, KOH, 1.0 mol dm-3 yang dapat meneutralkan 25.0 cm3 larutan H2SO4?

a)

6.25 cm

b)

12.50 cm3

c)

25.00 cm3

d)

50.00 cm3

6.

Diagram shows the set-up of apparatus for the titration of sodium hydroxide solution with a diprotic acid, H2X. The letter X is not the actual symbol of the element.

Rajah menunjukkan susunan radas bagi proses pentitratan larutan natrium hidroksida dengan asid diprotik, H2X. Huruf X bukan simbol sebenar unsur itu.


25.0 cm3 of H2X acid neutralises 20.0 cm3 of sodium hydroxide solution,

NaOH 1.0 mol dm-3. What is the molarity of the acid, H2X?

25.0 cm3 asid H2X meneutralkan 20.0 cm3 larutan natrium hidroksida,

NaOH, 1.0 mol dm-3. Berapakah kemolaran asid H2X?

a)

0. 2 mol dm-3

b)

0. 4 mol dm-3

c)

0. 6 mol dm-3

d)

0. 8 mol dm-3

7.

The chemical equation shows the reaction between excess sulphuric acid solution with sodium hydroxide solution.

Persamaan kimia menunjukkan tindak balas antara larutan asid sulfurik berlebihan dengan larutan natrium hidroksida.


2NaOH (aq) + H2SO4 (aq) ----> Na2SO4 (aq) + 2H2O


12.5 cm3 of 0.5 mol dm-3 sulphuric acid solution neutralises 50 cm3 of sodium hydroxide. Determine the concentration of the sodium hydroxide solution.

12.5 cm3 0.5 mol dm-3 larutan asid sulfurik meneutralkan 50 cm3 natrium hidroksida. Tentukan kepekatan larutan natrium hidroksida.

a)

0.10 mol dm-3

b)

0.20 mol dm-3

c)

0.25 mol dm-3

d)

0.50 mol dm-3

8.

The diagram shows the apparatus set -up for the titration between barium hydroxide solution and nitric acid.


Rajah menunjukkan susunan radas bagi pentitratan antara larutan barium hidroksida danasid nitric.


The equation for the reaction is shown below.

Persamaan bagi tindak balas ditunjukkan di bawah


Ba(OH)2 + 2HNO3 -----> Ba(NO3)2 + 2H2O


What is the volume of nitric acid needed for the titration to reach end point?

Berapakah isipadu asid nitrik diperlukan bagi mencapai takat akhir pentitratan?

a)

14.5 cm3

b)

25.0 cm3

c)

50.0 cm3

d)

75.0 cm3

9.

The following equation shows the neutralization reaction between sodium hydroxide with sulphuric acid.

Persamaan berikut menunjukkan tindak balas peneutralan di antara natrium hidroksida dengan asid sulfurik.


H2SO4 + 2NaOH -----> Na2SO4 + 2H2O

25 cm3 1mol dm-3 of sulphuric acid neutralize 25 cm3 of sodium hydroxide. What is the molarity of sodium hydroxide solution?

25 cm3 1 mol dm-3 asid sulfurik meneutralkan 25 cm3natrium hidroksida. Berapakah kemolaran larutan natrium hidroksida?

a)

0.5 mol dm-3

b)

1 mol dm-3

c)

2 mol dm-3

d)

3 mol dm-3

10.

The chemical equation shows the dissociation of barium hydroxide in water.

Persamaan kimia menunjukkan penceraian barium hidroksida dalam air.


Ba(OH)2 (aq) -----> Ba 2+( aq ) + 2 OH (aq)


What is the number of moles of hydroxide ion in 250 cm3 of 0.2 moldm-3 barium hydroxide?

Berapakah bilangan mol ion hidroksida dalam 250 cm3 0.2 moldm-3 barium hidroksida?

a)

0.05 mol

b)

0.10 mol

c)

0.20 mol

d)

0.80 m

11.

What is the volume of 2.0 mol dm-3 potassium hydroxide solution is needed to prepare 500 cm3 of 0.1 mol dm-3 potassium hydroxide solution?

Berapakah isipadu larutan kalium hidroksida 2.0 mol dm-3 yang diperlukan untuk menyediakan 500 cm3 larutan kalium hidroksida 0.1mol dm-3?

a)

25 cm3

b)

50 cm3

c)

100 cm3

d)

500 cm3

12.

Diagram shows two volumetric flasks containing 2.0 moldm-3 of hydrochloric acid and 0.2mol dm-3 hydrochloric acid.

Rajah menunjukkan dua kelalang isipadu yang mengandungi asid hidroklorik 2.0 moldm-3 dan asid hidroklorik 0.2 mol dm-3.


What is the volume of 2.0 mol dm-3 hydrochloric acid needed to prepare 100 cm3 of 0.2 mol dm-3 hydrochloric acid?

Apakah isipadu asid hidroklorik 2.0 mol dm-3 yang diperlukan untuk menyediakan 100 cm3 asid hidroklorik 0.2 mol dm-3?

a)

20.0 cm3

b)

10.0 cm3

c)

5.0 cm3

d)

1.0 cm3

13.

Calculate the mass of sodium hydroxide present in 100 cm3 of 0.5 mol dm-3 sodium hydroxide solution.

Hitung jisim natrium hidroksida dalam 100cm3 0.5 moldm-3 larutan natrium hidroksida.


[Relative atomic mass: H,1; O,16; Na,23]

[Jisim atom relative: H,1; O,16; Na,23]

a)

0.4 g

b)

0.5 g

c)

1.0 g

d)

2.0 g

14.

A diprotic acid, H2Z has the concentration of 0.5 mol dm-3. Z is not the actual symbol of the element. What is the volume of potassium hydroxide, KOH 1.0 mol dm-3 that can neutralize 25.0 cm3 of the H2Z acid solution?

Satu asid dwibes, H2Z mempunyai kepekatan 0.5 mol dm-3 . Z bukan simbol sebenar unsur itu. Berapakah isi padu kalium hidroksida, KOH 1.0 mol dm-3 yang dapat meneutralkan 25.0 cm3 larutan asid H2Z itu?

a)

6.25 cm3

b)

12.50 cm3

c)

25.00 cm3

d)

50.00 cm3

15.

The equation below shows the reaction between magnesium and hydrochloric acid.

Persamaan di bawah menunjukkan tindak balas di antara magnesium dan asid

hidroklorik.

Mg + 2HCl → MgCl2 + H2

If 0.48 g of magnesium is used, calculate the volume of 0.5 mol dm-3 hydrochloric acid needs to be added for complete reaction.

Jika 0.48 g magnesium digunakan, hitungkan isipadu asid hidroklorik 0.5 mol dm-3 yang perlu ditambah untuk tindak balas yang lengkap.

[Relative atomic mass : H=1 ; Mg=24 ; Cl=35.5 ]

[Jisim atom relatif : H=1 ; Mg=24 ; Cl=35.5 ]

a)

0.08 cm3

b)

0.8 cm3

c)

8 cm3

d)

80 cm3