Question

What is the difference between strong acid and weak acid

Answer 1

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FIRST OF ALL. WHAT ARE STRONG ACIDS AND WEAK ACIDS?

STRONG ACID :

Strong acids completely dissociate into ions in solution. For example, hydrochloric acid is a strong acid. It ionises completely to form hydrogen ions and chloride ions: HCl(aq) → H +(aq) + Cl -(aq)

WEAK ACID :

weak acid is one which doesn't ionise fully when it is dissolved in water. Ethanoic acid is a typical weak acid. It reacts with water to produce hydroxonium ions and ethanoate ions, but the back reaction is more successful than the forward one.

NOW, THE DIFFERENCE BETWEEN STRONG AND WEAK ACIDS.

Strong acids are ionised but weak acids are only partially ionised in solution. At the same concentration, strong acids have a higher concentration of hydrogen ions than weak acids. A weak acid is an acid that dissociates incompletely , releasing only some of its hydrogen atoms into the solution.

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Answer 2

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Strong acids are ionised but weak acids are only partially ionised in solution. At the same concentration, strong acids have a higher concentration of hydrogen ions than weak acids. A weak acid is an acid that dissociates incompletely , releasing only some of its hydrogen atoms into the solution .