Chemistry Form 4; Acid & Base - Neutralization

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?

• Sodium chloride

  Natrium klorida

• Calcium oxide

  Kalsium oksida

• Barium nitrite

  Barium nitrat

• Potassium iodide

  Kalium iodide

Tags

NGSS.MS-PS1-2

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?

• Sulphuric acid and calcium carbonate

  Acid sulfurik dan kalsium karbonat

• Nitric acid and magnesium oxide

  Asid nitrik dan magnesium oksida

• Hydrochloric acid and sodium sulphate

  Asid hidroklorik dan natrium sulfat

• Hydrochloric acid and sodium sulphate

  Asid hidroklorik dan natrium sulfat

Tags

NGSS.MS-PS1-2

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?

• Red litmus paper

  Kertas litmus biru

• Blue litmus paper

  Kertas litmus merah

• Phenolphtalein

  Fenolftalein

• Tetrachloromethane

  Tetraklorometana

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?

• 0.625 mol dm^-3

• 0.800 mol dm^-3

• 1.600 mol dm^-3

• 3.500 mol dm^-3

Tags

NGSS.HS-PS1-7

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?

• 6.25 cm

• 12.50 cm³

• 25.00 cm³

• 50.00 cm³

Tags

NGSS.HS-PS1-7

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?

• 0. 2 mol dm^-3

• 0. 4 mol dm^-3

• 0. 6 mol dm^-3

• 0. 8 mol dm^-3

Tags

NGSS.HS-PS1-7

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.

• 0.10 mol dm^-3

• 0.20 mol dm^-3

• 0.25 mol dm^-3

• 0.50 mol dm^-3

Tags

NGSS.HS-PS1-7

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?

• 14.5 cm³

• 25.0 cm³

• 50.0 cm³

• 75.0 cm³

Tags

NGSS.HS-PS1-7

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?

• 0.5 mol dm^-3

• 1 mol dm^-3

• 2 mol dm^-3

• 3 mol dm^-3

Tags

NGSS.HS-PS1-7

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?

• 0.05 mol

• 0.10 mol

• 0.20 mol

• 0.80 m

Tags

NGSS.HS-PS1-7