Introduction Flashcards

1
Q

Chemical processes in which an acid reacts with a
base.

A

NEUTRALIZATION REACTIONS

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2
Q

Acid-Base Theories

A
  • Arrhenius Concept
  • Bronsted-Lowry Concept
  • Lewis Acid-Base Concept
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3
Q

Any substance which is capable of providing hydrogen ions
(or protons H+) in aqueous solution.

A

Acids

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4
Q

Any substance containing hydroxy groups and/or capable of
providing hydroxide ion (OH-

) in aqueous solution.

A

Bases

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5
Q

Limitations of the Arrhenius Concept

A

is limited in that it can only describe acid-base chemistry in aqueous solutions. Similar reactions can also occur in non-aqueous solvents, however, as well as between molecules in the gas phase.

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6
Q

Other name of Bronsted-Lowry Concept

A

Protonic concept

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7
Q

Other name of Protonic concept

A

Bronsted-Lowry Concept

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8
Q

Any substance capable of donating a proton (H+) in a chemical reaction (difference from Arrhenius?)

A

Acids

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9
Q

Any substance capable of accepting a proton (H+) in a chemical reaction

A

Bases

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10
Q

Brönsted acid ionizes to produce a _________ and the conjugate base of the acid.

A

Proton

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11
Q

Brönsted acid ionizes to produce a proton and the
________ of the acid.

A

Conjugate base

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12
Q

are usually neutral molecules or anions, although few cases of cations acting as proton acceptors
are known.

A

Brönsted bases

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13
Q

species formed when a base accepts a proton

A

Conjugate acid

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14
Q

Strong acids have ________ and similarly, strong bases have ________

A

weak conjugate bases, weak conjugate acids

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15
Q

Any substance which can accept a share in a pair of
electrons in a reaction.

A

Acids

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16
Q

Electron acceptor

A

Acids

17
Q

Acids: Electron acceptor (_________)

A

electrophilic, electron seeking

18
Q

Any substance that donates a pair of electrons to share with
an acid in a reaction.

A

Bases

19
Q

Electron donor

A

Bases

20
Q

Electron donor (_______)

A

nucleophilic species

21
Q

Bronsted acid is also a Lewis acid, but not all Lewis
acid are Bronsted acid.(True or False?)

A

True

22
Q

Logarithm of the reciprocal of the hydrogen ion
activity

A

pH

23
Q

pH =

A

-log [H+]

24
Q

In this method, an accurately weighed sample of a
pure acid or base is titrated to a well-defined
equivalence point using a known concentration of an
acid or a base using a suitable indicator.

A

Neutralization Titration

25
Q

Neutralization Titration

In this method, an accurately weighed sample of a
pure acid or base is titrated to a well-defined
_________ using a known concentration of an
acid or a base using a suitable indicator.

A

equivalence point

26
Q

Neutralization Titration

In this method, an accurately weighed sample of a
pure acid or base is titrated to a well-defined
equivalence point using a known concentration of an
_______ using a suitable indicator.

A

acid or a base

27
Q

Equivalence point, relationship of analyte and titrant

A

moles of analyte = moles of titrant

28
Q

Are usually weak organic acids or bases in which the undissociated molecule has one color

A

Acid-Base indicators

29
Q

The anion and cation produced by dissociation has another color:

A

To determine the end-point
To determine the concentration of H+ or pH
To determine that a desired change in pH has been affected