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Spring 24 > Chemistry Exam 3 > Flashcards

Chemistry Exam 3 Flashcards

1
Q

Arrhenius Acid

A

increase concentration of H+ ions

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2
Q

Arrhenius Base

A

increase concentration of OH- ions

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3
Q

Bronsted Lowry Acid

A

proton donor, donates H+

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4
Q

Bronsted Lowry Base

A

proton accepter, accepts H+

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5
Q

acid goes to…

A

conjugate base

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6
Q

base goes to…

A

conjugate acid

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7
Q

strong acids

A

hcl, hbr, hi, hno3, h2so4, hclo3, hclo4

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8
Q

if the Ka value increases

A

the strength of the acid increases, lower the pH value

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9
Q

If the Kb value increases

A

the strength of the base increase, higher pH value

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10
Q

kw=

A

1x10^-14=KaKb

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11
Q

pH=

A

-log[H+]

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12
Q

[H+]=

A

10^-pH

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13
Q

POH=

A

-log[OH-]

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14
Q

[OH-]=

A

10^-pOH

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15
Q

Ka=

A

[H+]^2/IxC

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16
Q

Kb=

A

[OH-]^2/IxC

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17
Q

find pH of a base

A

subtract from 14

18
Q

percent ionization

A

change/initalx100%

19
Q

cations of strong bases that will not effect the pH

A

Na, K, Mg, Ca, group 1/ group 2A

20
Q

cation that is the conjugate acid of a weak base that will decrease the pH

A

NH4, CH3NH3

21
Q

transition metals will do what to the pH

A

decrease

22
Q

Lewis Acid

A

accepts electron pair

23
Q

Lewis Base

A

donates electron pair

24
Q

buffers are

A

solutions of a weak conjugate acid-base pair
weak acid and its conjugate base

25
Q

buffers are resistant to…

A

pH changes even when strong acid or base is added

26
Q

buffer calculations

A

pH=pka+log base/acid

27
Q

if the titration graph has a steep incline starting at the bottom

A

strong acid

28
Q

if the titration has a gradual incline starting at the bottom

A

weak acid

29
Q

if the titration has a steep decline starting at the top

A

strong base

30
Q

if the titration has a gradual incline starting at the top

A

weak base

31
Q

ksp=

A

4x^3

32
Q

the higher the ksp…

A

the greater the solubility of the compund

33
Q

high Ka value

A

strong acid

34
Q

high pka

A

weak acid

35
Q

low pka

A

strong acid

36
Q

when figuring out which buffer has the higher capacity with molarity

A

find the answer with the highest concentration

37
Q

when figuring out which salt is the most sensitive to pH

A

find the compund that is insoluable

38
Q

when figuring out which substances will form acid solutions

A

it is the substances that dissoicate using the solubility chart

39
Q

small Ka value=

A

stronger base

40
Q

Find pH of Kw not at pure water

A

take the square root of Kw value given

41
Q

When asked to find the lewis acid

A

pick a compund without carbon in it

42
Q

when asked which action will destroy a buffer

A

pick the answer that will cancel the numbers

Spring 24 (6 decks)

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