Brønsted–Lowry Acids and Bases (OCR A-Level Chemistry A): Quizzes

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Brønsted–Lowry Acids and Bases
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What is a Brønsted-Lowry acid?

A species that donates a proton

What is a Brønsted-Lowry base?

A species that accepts a proton

What is the key advantage of the Brønsted-Lowry model over the Arrhenius model?

It works in any solvent, not just water

What is a conjugate acid-base pair?

Two species differing by one H+\text{H}^+

What is H3O+\text{H}_3\text{O}^+(aq) called?

The hydronium ion

How many protons can a dibasic acid donate per molecule?

Two protons

Why is ethanoic acid (CH3COOH\text{CH}_3\text{COOH}) classified as monobasic?

Only the -COOH hydrogen can be donated

What is the active species in all acid reactions?

The H+\text{H}^+ ion

What is the ionic equation for neutralisation of an acid by an alkali?

H+(aq)+OH−(aq)→H2O(l)\text{H}^+\text{(aq)} + \text{OH}^-\text{(aq)} \rightarrow \text{H}_2\text{O(l)}

How many moles of NaOH neutralise 1 mole of H2SO4\text{H}_2\text{SO}_4?

2 moles

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