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Chemistry > Acids and Bases > Flashcards

Acids and Bases Flashcards

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1
Q

Arrhenius Theory

A

An acid is a substance that ionises in water to produce hydrogen ions.

A base is a substance that dissociates in water to produce hydroxide ions.

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2
Q

Bronsted-Lowry Theory

A

An acid is a proton (H+) donor.

A base is a proton (H+) acceptor.

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3
Q

Strong acids

A

An acid that ionises completely in aqueous solution

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4
Q

Strong base

A

A base that dissociates completely in aqueous solution

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5
Q

Weak acid

A

An acid that only ionises partially in an aqueous solution

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6
Q

Weak base

A

A base that only dissociates/ionises partially in an aqueous solution

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7
Q

Concentrated Acid

A

A large amount of solute dissolved in a small amount of water

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8
Q

Dilute Acid

A

A small amount of solute dissolved in a large amount of water

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9
Q

Salt

A

A substance in which the hydrogen of an acid has been replaced by a cation

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10
Q

Neutralisation

A

The point where an acid and base have reacted so neither is in excess. Also called the equivalence point.

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11
Q

Indicators

A

A substance that changes colour depending on the pH of the solution

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12
Q

Solution

A

A homogenous mixture of solute and solvent

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13
Q

Standard solution

A

A solution of known concentration and it will remain constant for a while

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14
Q

Amphoteric/Amphiprotic substance

A

A substance that can act as either an acid or base.

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15
Q

pH

A

A number that indicates the degree of the acidity of a solution

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16
Q

Ionisation

A

The reaction of a molecular substance with water to produce ions

17
Q

Dissociation

A

The splitting of an ionic compound into its ions

18
Q

Measure of ionisation of acid

A

The measure of the strength of the acid

19
Q

Measure of dissociation of base

A

The measure of the strength of the base

20
Q

Hydrolysis of salt

A

A reaction of an ion (from a salt) with water.

Chemistry (7 decks)

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