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PORG 121 > ACIDS AND BASES > Flashcards

ACIDS AND BASES Flashcards

1
Q

These are substances that had a sour taste were corrosive and reacted with substance called bases

A

Acids

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2
Q

These are substances that had a bitter taste made skin slippery on contact and reacted with acids

A

Bases

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3
Q

Under Arrhenius theory it ionizes to form hydrogen ions in aqueous solution

A

Arrhenius acids

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4
Q

Under arrhenius theory if ionizes to form hydroxide ions in aqueous solution

A

Arrhenius base

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5
Q

A base which ionizes almost completely in solution is said to be__ whereas one which has a small degree of ionization is a__

A

Strong base
Weak base

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6
Q

In this theory and acid ionizes in water much as an ionic substance and equilibrium constant for the reaction is called acid ionization constant

A

Arrhenius theory

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7
Q

It is the reaction of an acid and a base to produce water and a salt

A

Neutralization

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8
Q

It is the proton donor to the lone pair due to electronegativity

A

Bronsted lowry acid

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9
Q

It is the proton acceptor from the acid under bronsted lowry theory

A

Bronsted lowry base

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10
Q

The product resulting from the addition of a proton to the base

A

Conjugate acid

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11
Q

The product formed after the proton is lost from the acid

A

Conjugate base

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12
Q

It is the acceptor electron such as metal group 3A elements and transition metals

A

Lewis acids

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13
Q

It is the donor electrons or the lone pairs

A

Lewis base

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14
Q

The donated electron pair is shared between an acid and a base in a covalent bond which results to a

A

Coordinate covalent bond

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15
Q

Refers to its ability or tendency to lose a proton

A

Acid strength

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16
Q

It completely ionizes or dissociates in a solution

A

Strong acid

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17
Q

It partially dissociates in a solution

A

Weak acid

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18
Q

It measures the strength of an acidic molecule

A

Acid dissociation constant (ka)

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19
Q

Measures the strength of an aqueous acid solution

A

pH

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20
Q

Strong acids have large_and _ conjugate base

A

Ka & weak

21
Q

Weak acids have small_ and _ conjugate base

A

Ka & strong

22
Q

It indicates the relative strength of the acid or base

A

Ionization constant (Ka)

23
Q

Negative log of the ionization constant

A

pKa

24
Q

The negative logarithm of water ion constant

A

pKw

25
Q

The negative logarithm of acid dissociation constant

A

pKa

26
Q

The negative logarithm of base dissociation constant

A

pKb

27
Q

Characterized by the presence of a positively polarized hydrogen atom

A

Organic acids

28
Q

Hydrogen atom bonded to an electronegative oxygen atom (O-H)

A

Organic acids

29
Q

Hydrogen atom bonded to a carbon next to a carbonyl carbon

A

Organic acids

30
Q

Examples of organic acids

A

Methanol
acetone
acetic acid

31
Q

It contains one or more of the following functional groups
Carboxylic acid group
Phenolic group
Sulfonic acid group
Sulfonamide group
Imide group

A

Organic acids

32
Q

Functional groups under organic acids

A

Carboxylic acid group
Phenolic group
Sulfonic acid group
Sulfonamide group
Imide group

33
Q

Characterized by the presence of an atom with lone pair of electrons that can bond to a hydrogen ion

A

Organic bases

34
Q

These are nitrogen containing compounds and oxygen containing compounds that can act both as an acid or base depending on the circumstances

A

Organic bases

35
Q

Organic bases example

A

Methylamine
Methanol
Acetone

36
Q

Contain one or more of the following functional groups
-Primary secondary tertiary aliphatic or alicyclic amino groups
-most aromatic or unsaturated heterocyclic nitrogen

A

Organic bases

37
Q

Use to calculate the pH of solutions of weak acids weak bases and buffers consisting of weak acids and their conjugate bases or weak bases and their conjugate acids

A

Henderson hasselbalch equation

38
Q

Henderson hasselbalch equations

A

pH= pKa + log (A/HA)
pH= pKw - pKb + log (B/HB)

39
Q

It is the base dissociation constant

A

kb

40
Q

It is the water dissociation constant

A

Kw

41
Q

Molecule that acts both acid and base

A

Amphoteric

42
Q

Increase Ka will _ ph

A

Decrease

43
Q

Decrease Ka will _ ph

A

Increase

44
Q

Increase Ka will _ acidity

A

Increase

45
Q

Decrease Ka will _ acidity

A

Decrease

46
Q

Increase Ka will _ basicity

A

Decrease

47
Q

Decrease Ka will _ basicity

A

Increase

48
Q

pH+pOH=

A

14

49
Q

pKw=

A

14

PORG 121 (7 decks)

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