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Chemistry

GCSE · AQA

QuestionsFlashcards

Simple Model of the Atom
The Periodic Table
Properties of Transition Metals
- Typical Properties of Transition Metals
  7
- Transition Metals vs. Alkali Metals
  6

Ionic, Covalent & Metallic Bond
Bonding & Substance Properties
Structure & Bonding of Carbon
Bulk & Surface Properties
- Sizes of Particles & their Properties
  6
- Nanoparticles
  6

Formation of Earth's Atmosphere
CO2 & CH4 as Greenhouse Gases
Causes of Atmospheric Pollution
- Atmospheric Pollutants from Fuels
  6
- Properties & Effects of Atmospheric Pollutants
  6

Global Reserves & Potable Water
Life Cycle Analysis & Recycling
- Life Cycle Assessment
  7
- Reducing Use of Resources
  5
Using Materials
Haber Process & NPK Fertilisers

Carboxylic Acids as Acids Flashcards

All 5 cards in this deck

Why are carboxylic acids classed as weak acids?: They only ionise partially (incompletely) in water, because the ionisation reaction is reversible.
What is the equation for the ionisation of ethanoic acid in water?: $CH_3COOH(aq) \rightleftharpoons CH_3COO^-(aq) + H^+(aq)$
How does the pH of a carboxylic acid compare with that of a strong acid of the same concentration, and why?: The carboxylic acid has a higher pH, because it produces a lower concentration of hydrogen ions.
True or false? A weak acid and a dilute acid mean the same thing.: False. Weak means only partly ionised; dilute refers to a low concentration of acid.
Why does a carboxylic acid react more slowly with a carbonate than a strong acid of the same concentration?: It has a lower concentration of hydrogen ions, so there are fewer collisions per unit time.