acids and bases

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  • Created by: anna888
  • Created on: 16-10-22 15:02
strong acid/base
fully ionises in water
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weak acid/base
partially ionises in water
2 of 20
pka of strong acid
low
3 of 20
pka of weak acid
high
4 of 20
what is pka
measure of acid ionsiation.
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what is ph
level of h ions in a solution
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pka for bases?
stronger base, the weaker the conjugate acid, the higher the pka.
7 of 20
hwo does electronegitivity effect acid strength
more electronegitive, e- held closer, easier to loose proton , stronger.
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anaion size and acid strength
larger means stronger acid, easeir to give away proton
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resonance meaning and effect on acid strength
delocalisation of e- via a double bond. negitive charge stabilised so easier to donate proton
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hybridiaztion and acid strength
more s character means e- held in closer to nucleus. easier to loose proton
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inductive effect and acid strength
e- charge conducted through sigma bonds puled towards electronegtive atom. esier to loose proton so stronger
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what is common ion effect
shift in equib cause by additon of a compound which has an ion the same as the dissolved substance
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whta does a buffer consist of
weak acid/base and its salt
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what is leveling effect
strength of an acid/ base is levelled by its solvent ie strong acid in basic solvent makes it less strong
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when is basic group more ionsied
in low ph
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when is acidic group more ionsied
high ph.
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whta is potency
level of drug action
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what does pka=ph mean
50% acid 50% base/ 50% ionisation
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for acid if ph>pka
acid unionised. opposite for base
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Other cards in this set

Card 2

Front

weak acid/base

Back

partially ionises in water

Card 3

Front

pka of strong acid

Back

Preview of the front of card 3

Card 4

Front

pka of weak acid

Back

Preview of the front of card 4

Card 5

Front

what is pka

Back

Preview of the front of card 5
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