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Anameth Lab (Midterms) > pH, Ka, and Buffer > Flashcards

pH, Ka, and Buffer Flashcards

1
Q

substances that ionize in water to produce H+ ions

A

acids

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2
Q

substances that ionize in water to produce OH- ions

A

bases

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3
Q

acids or bases: have a sour taste

A

acids

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4
Q

acids or bases: vinegar, citrus fruits

A

acids

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5
Q

acids or bases: have a bitter taste

A

bases

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6
Q

acids or bases: feels slippery

A

bases

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7
Q

acids or bases: soaps

A

bases

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8
Q

acids or bases: causes color changes in plant dyes

A

acids

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9
Q

acids or bases: change the color of litmus from blue to red

A

acids

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10
Q

acids or bases: change the color of litmus from red to blue

A

bases

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11
Q

acids or bases: reacts with certain metals such as zinc, magnesium, and iron to produce hydrogen gas

A

acids

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12
Q

acids or bases: reacts with carbonates and bicarbonates

A

acids

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13
Q

acids or bases: conduct electricity

A

both acid and base

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14
Q

is a weak electrolyte (and therefore a weak base) because only
a small fraction of dissolved NH3 molecules react with water to form NH4 and OH- ions.

A

ammonia

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15
Q

most commonly used strong base in the laboratory is

A

NAOH (sodium hydroxide)

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16
Q

The most commonly used weak base

A

aqueous ammonia solution (ammonium hydroxide)

17
Q

reaction between acid and base

A

neutralization

18
Q

aqueous acid-base reactions produce

A

water and salt

19
Q

an ionic compound made up of a cation other than H+ and an anion other
than OH- or O2-

A

salt+water

20
Q

comes from the german word that means power combined with hydrogen

A

pH

21
Q

german word that means power

A

potenz

22
Q

meaning of pH

A

power of hydrogen

23
Q

In the _________ definition an acid is a proton donor while base is a proton acceptor

A

Bronsted-Lowry

24
Q

acid is a proton ____

A

donor

25
Q

base is a proton _______

A

acceptor

26
Q

when acid and base react, the products are:

A

new acid
new base

27
Q

division of acids based on their ability to donate a proton to the solvent

A

strong and weak acids

28
Q

almost completely transfers its proton to the solvent

A

strong acid

29
Q

example of a strong acid

A

hydrochloric acid (HCl)
hydroiodic acid (HI)
hydrobromic acid (HBr)
nitric acid (HNO3)
perchloric acid (HClO4)
first proton of sulfuric acid (H2SO4)

30
Q

does not completely donate its acidic
proton to the solvent.

A

weak acid

31
Q

most of the acid remains undissociated with only a
small fraction present as the conjugate base.

A

weak acid

32
Q

examples of weak acid

A

hydrofluoric acid (HF)
nitrous acid (HNO2)
phosphoric acid (H3PO4)
acetic acid (CH3COOH)

Anameth Lab (Midterms) (1 decks)

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