Chapter 8 - Acids And Bases Flashcards

1
Q

Bronsted Acid

A

Donate Proton

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2
Q

Bronsted Base

A

Accept Proton

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3
Q

Amphiprotic

A

Act as Bronsted acid and base
H20

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4
Q

Amphoteric

A

Act as Lewis Acid and Base
Example zinc, al and hydroxides of some metals

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5
Q

Lewis Acid

A

Electron Pair acceptor

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6
Q

Lewis Base

A

Electron pair donor

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7
Q

Characteristics of Strong Acids and Bases

A

Good proton donor / acceptor
higher conductivity

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8
Q

Strong acid has a …

A

Weak conjugate base

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9
Q

ka value means

A

Large K
stronger the acid

measure of dissociation

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10
Q

kw

A

Ka *kb
1 * 10 ^-14
dissociation constant of water

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11
Q

pkw

A

pkb +pka

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12
Q

pka value means

A

low pka means a strong acid

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13
Q

Why is and pka a better means to measure strength that ph

A

Value does not depend on the concentration of the acid or base

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14
Q

ka, pka depend on temperature

A

Based on the equilibirum reactions anf vhanging the temp wipll affect the POE

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15
Q

Dissociation is an exo or endo

A

endothermic
bond break

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16
Q

as temp increases poe shift to the

A

right

17
Q

Equivalence point

A

Mole of acid = mole of base

18
Q

End point

A

color change in titration

19
Q

define buffer solution

A

Resists ph change when small amounts of acid or base is added