1
Q
what is a buffer solution
A
A buffer solution is one where the pH doesnt change significantly if small amounts of acid or alkali are added to it.
2
Q
how is an acidic buffer made
A
weak acid and a salt of that weak acid (made from reacting the weak acid with a strong base). Eg Ethanoic acid and Sodium ethanoate
3
Q
how is a basic buffer made
A
a weak base and a salt of that weak base(made from reacting the weak base with a strong acid).
Eg :ammonia and ammonium chloride
3
Q
A
Physical Chemistry
flashcards
Decks in class (13)
# Cards
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3.1.1 Atomic structure18
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3.1.2 Amount of substance4
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3.1.3 Bonding6
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3.1.4 Energetics7
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3.1.5 Kinetics0
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3.1.6 Chemical equilibria, Le Chatelier’s principle and Kc1
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3.1.8 Thermodynamics (A-level only)20
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3.1.7 Oxidation, reduction and redox equations0
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3.1.9 Rate equations (A-level only)0
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3.1.11 Electrode potentials and electrochemical cells (A-level only)11
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3.1.12 Acids and bases (A-level only7
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Buffers4
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Equilibriums3
