7.1.5

Identifying Acids

Test yourself

Determining if a Substance is an Acid or Alkali

There are many ways of determining whether a substance is an acid or an alkali. We can determine the pH directly, or we can use an indicator. Examples of indicators are:

Illustrative background for Litmus paperIllustrative background for Litmus paper ?? "content

Litmus paper

  • Litmus paper is:
    • Red in acid.
    • Blue in alkali.
Illustrative background for Methyl orangeIllustrative background for Methyl orange ?? "content

Methyl orange

  • Methyl orange is:
    • Red in acid.
    • Yellow in alkali.

Jump to other topics

1States of Matter

2Atoms, Elements & Compounds

3Stoichometry

4Electrochemistry

5Chemical Energetics

6Chemical Reactions

7Acids, Bases & Salts

8The Periodic Table

9Metals

10Chemistry of the Environment

11Organic Chemistry

11.1Formulae, Functional Groups & Terminology

11.2Naming Organic Compounds

11.3Fuels

11.4Alkanes

11.5Alkenes

11.6Alcohols

11.7Carboxylic Acids

11.8Polymers

12Experimental Techniques & Chemical Analysis

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