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Chemistry > Acids & Bases > Flashcards

Acids & Bases Flashcards

(47 cards)

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1
Q

How many definitions are there of acids & basis?

A

3

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2
Q

What is Arrhenius definition of acids?

A

Releases H+ in solution

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3
Q

What is Arrhenius definition of basis?

A

Releases OH- in solution

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4
Q

What is the bronsted- Lowry definition of acids?

A

H+ donor

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5
Q

What is the bronsted- Lowry definition of bases?

A

H+ acceptor

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6
Q

What is the conjugate acid? (Bronsted-lowry)

A

What receives the H+

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7
Q

What is the conjugate bases? (Bronsted-lowry)

A

What has lost the H+ & thus can now receive one

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8
Q

What is the Lewis definition of acid?

A

Electron pair acceptors (ecectrophices)

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9
Q

What is the Lewis definition of bases?

A

Electron pair donor (nucleophile)

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10
Q

What is the easiest way to identify which is a Lewis acid & base?

A

Draw the Lewis structure

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11
Q

What is a strong acid? How can you tell from a reaction equation?

A

Acid that fully dissociates and are strong electrolytes (conduct electricity better than weak acids), so reaction arrow going one way not both

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12
Q

What is a weak acid? How can you tell from a reaction equation?

A

Partial dissociated into ions, weak electrolytes ( electrical conductivity depends on extent of ionization), equation arrows are equilibrium arrows

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13
Q

What is a strong base? How can you tell from a reaction equation?

A

Base that fully dissociates and are strong electrolytes (conduct electricity better than weak bases), so reaction arrow going one way not both

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14
Q

What is a weak base? How can you tell from a reaction equation?

A

Partial dissociated into ions, weak electrolytes ( electrical conductivity depends on extent of ionization), equation arrows are equilibrium arrows

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15
Q

What is the formula for pH?

A

Google answer

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16
Q

What is the formula for pOH?

A

Google answer

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17
Q

At what temperature does pH + pOH= 14?

A

298 K

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18
Q

pH <7

A

Acidic

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19
Q

pH > 7

20
Q

pH = 7

21
Q

What Color is the universal indicator when pH 1-3?

22
Q

What Color is the universal indicator when pH 4-6?

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A

Yellow- light green

23
Q

What Color is the universal indicator when pH 7?

24
Q

What Color is the universal indicator when pH 8-11?

25
What Color is the universal indicator when pH 12-14?
Purple
26
What happens when you mix an acid & a base?
Acid + base → salt + water
27
What happens when you mix an acid & a metal?
Acid + metal → salt + hydrogen gas
28
What happens when you mix an acid & a carbonate?
Acid + carbonate → salt + water + Carbon dioxide
29
How do you identify acids?
Strong acids Non-metal oxides: acidic as they form a acid when reacting with water Carboxylic acids: functional group COOH means weak acid
30
How do you identify bases ?
Strong bases Metallic oxides: when reacting with water they become a base Amino groups: when an NH2 is included
31
What is an amphoteric compound?
Something that can act as either a base or an acid
32
How do you identify an amphoteric compound?
Water Amphoteric oxides: Al2O3 Amino acids
33
What is Hcl (strong, week, acid, base) & name?
Strong acid, hydrochloricacid
34
What is HBr (strong, week, acid, base) & name?
Hydrobronicacid, strong acid
35
What is HI (strong, week, acid, base) & name?
Hyndroiodic acid, strong acid
36
What is H2so4 (strong, week, acid, base) & name?
Sulfuric acid, strong acid
37
What is HNO3 (strong, week, acid, base) & name?
Nitre acid, strong acid
38
What is HclO4 (strong, week, acid, base) & name?
Perchloricacid, strong acid
39
What is HclO3 (strong, week, acid, base) & name?
Caloric acid, acid
40
What is kOh (strong, week, acid, base) & name?
Potassium hydroxide, strong base
41
What is Naoh (strong, week, acid, base) & name?
Sodium hydroxide, strong base
42
What is ba(OH)2 (strong, week, acid, base) & name?
Barium hydroxide, strong base
43
What is Csoh (strong, week, acid, base) & name?
Caesium hydroxide, strong base
44
What is Sr(oh)2 (strong, week, acid, base) & name?
Strontium hydroxide, strong base
45
What is Ca(oh)2 (strong, week, acid, base) & name?
Calcium hydroxide, strong base
46
What are alkali?
Bases that are soluable in water
47
What makes buffers resistant to ph change?
The presence of an equilibrium between a weak acid & its conjugate base

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