Strong Acids and Weak Acids

Cards (17)

What does a strong acid mean?
It is an acid that completely ionises in water
What do acids do in aqueous solutions?
Ionise
What element ions do acids produce in water?
Hydrogen
What are three strong acids?
Hydrochloric acid
Nitric acid
Sulfuric acid
What is a weak acid?
An acid that doesn't fully ionise in water
What are three weak acids?
Ethanoic acid
Citric acid
Carbonic acid
What do acid particles do to release H+ ions?
Dissociate
What type of reaction is the ionisation of a weak acid?
A reversible reaction
What is an undissociated acid?
An acid which has not been ionised
What is set up as a result of a weak acid partially ionising?
Equilibrium
Is the balance of equilibrium to the left or right of a weak acid equation?
Left, most particles aren't ionised
Why are strong acids more reactive?
Because they release more H+ ions which is what is involved with reactions
What is pH? 
A measure of the concentration of hydrogen ions
How much does the factor of concentration of H+ ions increase per decrease of 1 on the pH scale?
10
What is the rule for calculating H+ ion concentration in substances? 
Factor H+ ion concentration changes by 10^-x
What does acid strength tell you?
The proportion of acid molecules that ionise in water
What is the concentration of an acid?
How many acid molecules are in a certain volume of water