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Chemistry final > Chapter 7 > Flashcards

Chapter 7 Flashcards

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1
Q

Electrolytes

A

Those compounds that dissociate into ions in aqueous solution and conduct electricity

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2
Q

Strong electrolytes

A

HCl
HNO3
HClO4
H2SO4
NaOH
Ba(OH)2
ionic compounds

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3
Q

Weak electrolytes

A

CH3COOH
HF
HNO2
NH3
H2O

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4
Q

A precipitation reaction

A

the formation of a solid from the mixing of two or more aqueous solutions

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5
Q

Solubility rules

A

Nitrates
Acetates
Group 1
Sulfates
Ammonium
Group 17

exceptions:
P (Pb, lead)
M (mercury, Hg)
S (silver, Ag)

Ca, Sr, Ba

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6
Q

Molecular Equation

A

Shows the reactants and products as undissociated compounds

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7
Q

Total Ionic Equation

A

All strong electrolytes shown as ions Do NOT dissociate separate phases (s, l, g)

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8
Q

Net Ionic Equation

A

Shows ONLY compounds that react
Eliminates spectator ions: ions that do not participate in the reaction directly

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9
Q

A Brønsted acid is a proton donor
A Brønsted base is a proton acceptor

A
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10
Q

Acids and bases occur in conjugate pairs

A

Acid loses a H+ to become the conjugate base
Base gains a H+ to become the conjugate acid

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11
Q

Predicting Products

A

AB + CD –> AD + CB
acid base reactions are double displacement reactions (just like precipitation), in which one of the cations is H+

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12
Q

Standard solution

A

solution of known concentration

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13
Q

Analyte

A

substance whose concentration is determined

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14
Q

Standardize

A

determine exact concentration of

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15
Q

Indicator

A

substance that changes color at (or near) the equivalence point

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16
Q

Equivalence point

A

enough standard solution added to react with the analyte in exact stoichiometric ratio

17
Q

Endpoint

A

the experimentally determined value of the equivalence point as determined from indicator

18
Q

Oxidation

A

Loss of e- (element becomes more +)

19
Q

Reduction

A

Gain of e- (element becomes more -)

20
Q
A

Chemistry final (9 decks)

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