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Strong and Weak Acids - Strength and Concentration (continued).
A strong acid does not become a weak acid just because it is diluted.
Concentrated
hydrochloric acid and dilute
hydrochloric acid are both
strong acids because they are both
completely
ionised in water.
Concentrated
ethanoic acid and dilute
ethanoic acid are both weak acids
because they are only partly ionised in
water.
You can tell the difference between a strong
acid and a weak acid
by using universal indicator to see what
pH it
is.
A strong
acid and a weak acid of the same
concentration
will react at different
rates with the same
metal (see next page).
Headings
Acids and Alkalis Search
Questions
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