Last updated on Jun 09, 2026

2 – Detecting the Presence of Anions (LC 2027) (Leaving Cert Chemistry): Flashcards

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2 – Detecting the Presence of Anions (LC 2027) (Leaving Cert Chemistry): Flashcards

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What are anions?

Reagent to test for Cl−Cl^-Cl− ions

Observation for Cl−Cl^-Cl− test

Confirmatory test for AgCl

Reagent for SO42−SO_4^{2-}SO42−​ and SO32−SO_3^{2-}SO32−​

Distinguish SO42−SO_4^{2-}SO42−​ from SO32−SO_3^{2-}SO32−​

Gas from CO32−CO_3^{2-}CO32−​ + acid

Limewater + CO2CO_2CO2​ observation

Distinguish CO32−CO_3^{2-}CO32−​ from HCO3−HCO_3^-HCO3−​

Test name for NO3−NO_3^-NO3−​ ions

NO3−NO_3^-NO3−​ test observation

Reagents for NO3−NO_3^-NO3−​ test

PO43−PO_4^{3-}PO43−​ test observation

Reagents for PO43−PO_4^{3-}PO43−​ test

Product of Cl−Cl^-Cl− + Ag+Ag^+Ag+

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Overview of Experiments (LC 2026)

Overview of Experiments (LC 2026)

1 – Carrying Out Flame Tests (LC 2027)

1 – Carrying Out Flame Tests (LC 2027)

2 – Detecting the Presence of Anions (LC 2027)

2 – Detecting the Presence of Anions (LC 2027)

3 – Measuring the Relative Molecular Mass of a Volatile Liquid (LC 2027)

3 – Measuring the Relative Molecular Mass of a Volatile Liquid (LC 2027)

4 – Verifying the Law of Conservation of Mass (LC 2027)

4 – Verifying the Law of Conservation of Mass (LC 2027)

5 – Investigating Decreases in Concentration (LC 2027)

5 – Investigating Decreases in Concentration (LC 2027)

6 – Preparing Sodium Carbonate (LC 2027)

6 – Preparing Sodium Carbonate (LC 2027)

7 – Standardising a Hydrochloric Acid Solution (LC 2027)

7 – Standardising a Hydrochloric Acid Solution (LC 2027)

8 – Standardising a Sodium Hydroxide Solution (LC 2027)

8 – Standardising a Sodium Hydroxide Solution (LC 2027)

9 – Determining the Concentration of an Ammonia Solution (LC 2027)

9 – Determining the Concentration of an Ammonia Solution (LC 2027)

10 – Determining the Concentration of Ethanoic Acid in Vinegar (LC 2027)

10 – Determining the Concentration of Ethanoic Acid in Vinegar (LC 2027)

11 – Standardising a Potassium Permanganate Solution (LC 2027)

11 – Standardising a Potassium Permanganate Solution (LC 2027)

12 – Determining the Percentage of Elemental Iron in an Iron Tablet (LC 2027)

12 – Determining the Percentage of Elemental Iron in an Iron Tablet (LC 2027)

13 – Standardising a Sodium Thiosulfate Solution (LC 2027)

13 – Standardising a Sodium Thiosulfate Solution (LC 2027)

14 – Investigating the Rate of Decomposition of Hydrogen Peroxide (LC 2027)

14 – Investigating the Rate of Decomposition of Hydrogen Peroxide (LC 2027)

15 – Investigating the Effect of Surface Area on Reaction Rates (LC 2027)

15 – Investigating the Effect of Surface Area on Reaction Rates (LC 2027)

16 – Studying the Effect of Concentration on Reaction Rate (LC 2027)

16 – Studying the Effect of Concentration on Reaction Rate (LC 2027)

17 – Studying the Effect of Temperature on Reaction Rate (LC 2027)

17 – Studying the Effect of Temperature on Reaction Rate (LC 2027)

18 – Investigating Effects on the State of Equilibrium (LC 2027)

18 – Investigating Effects on the State of Equilibrium (LC 2027)

19 – Investigating the Heat of Combustion of Alcohols (LC 2027)

19 – Investigating the Heat of Combustion of Alcohols (LC 2027)

20 – Determining the Enthalpy of Reaction of a Neutralisation Reaction (LC 2027)

20 – Determining the Enthalpy of Reaction of a Neutralisation Reaction (LC 2027)

21 – Investigating Galvanic Cells (LC 2027)

21 – Investigating Galvanic Cells (LC 2027)

22 – Investigating with Inert Electrodes (LC 2027)

22 – Investigating with Inert Electrodes (LC 2027)

23 – Preparing & Investigating Ethene (LC 2027)

23 – Preparing & Investigating Ethene (LC 2027)

24 – Preparing an Ester (LC 2027)

24 – Preparing an Ester (LC 2027)

25 – Preparing Soap (LC 2027)

25 – Preparing Soap (LC 2027)

26 – Distinguishing Between Aldehydes and Ketones (LC 2027)

26 – Distinguishing Between Aldehydes and Ketones (LC 2027)

27 – Synthesising & Investigating Benzoic Acid (LC 2027)

27 – Synthesising & Investigating Benzoic Acid (LC 2027)

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Overview of Experiments (LC 2026)

Overview of Experiments (LC 2026)

1 – Carrying Out Flame Tests (LC 2027)

1 – Carrying Out Flame Tests (LC 2027)

2 – Detecting the Presence of Anions (LC 2027)

Reagent to test for $Cl^-$ ions

Observation for $Cl^-$ test

Reagent for $SO_4^{2-}$ and $SO_3^{2-}$

Distinguish $SO_4^{2-}$ from $SO_3^{2-}$

Gas from $CO_3^{2-}$ + acid

Limewater + $CO_2$ observation

Distinguish $CO_3^{2-}$ from $HCO_3^-$

Test name for $NO_3^-$ ions

$NO_3^-$ test observation

Reagents for $NO_3^-$ test

$PO_4^{3-}$ test observation

Reagents for $PO_4^{3-}$ test

Product of $Cl^-$ + $Ag^+$