Strong and Weak Acids

Distinguish between the terms dilute and concentrated (amount of substance) and weak and strong (degree of ionisation) in relation to acids.
Define a strong acid as one that is completely ionised in an aqueous solution (e.g., hydrochloric, nitric, and sulfuric acids).
Define a weak acid as one that is only partially ionised in an aqueous solution (e.g., ethanoic, citric, and carbonic acids).
Recall that as the hydrogen ion concentration increases by a factor of ten, the pH value of a solution decreases by exactly one whole number.
Describe neutrality, relative acidity, and alkalinity in terms of the effect of hydrogen ion concentration on the numerical value of pH.
Understand that for a given concentration of aqueous solutions, the stronger an acid, the lower its pH.

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