Save
Acids & Bases
Save
Share
Learn
Content
Leaderboard
Share
Learn
Created by
Euan
Visit profile
Cards (57)
What is a Bronsted-Lowry acid?
Proton donor
View source
What is a Bronsted-Lowry base?
Proton acceptor
View source
What ion causes a solution to be acidic?
H+
(
hydrogen ion
)
View source
What is the formula for the oxonium ion?
H3O+
View source
What ion causes a solution to be alkaline?
OH-
(hydroxide ion)
View source
Write an equation for the ionisation of water.
2H2O (l) ⇌
H3O+
(aq) +
OH-
(aq)
View source
How is Kw derived from the ionisation of water?
Kw = [
H3O+
][
OH-
]
View source
What is the value of Kw at 298K?
1.0 x 10^-14
View source
What physical factor affects the value of Kw?
Temperature
View source
How does increasing temperature affect Kw?
Kw
increases
and pH
decreases
View source
Why is pure water still neutral?
[H+]
=
[OH-]
View source
What is the expression for pH in terms of H+?
pH = -
log10
[H+]
View source
What is the relationship between pH and concentration of H+?
Lower pH =
higher
concentration of
H+
View source
If two solutions have a pH difference of 1, what is the difference in [H+]?
A
factor of 10
View source
How do you find [H+] from pH?
[H+] =
10^-pH
View source
How do you find [OH-] from pH at 298K?
Use
Kw
to
calculate
[OH-]
View source
What is different when finding [H+] from diprotic and triprotic acids?
Multiply
concentration
by number of
protons
View source
How do you calculate the pH of a strong alkaline solution?
Use
Kw
to calculate
[H+]
View source
Define a strong acid.
Fully
dissociates
in water
View source
Define a strong base.
Fully
dissociates
in water
View source
What is the difference between concentrated and strong?
Concentrated refers to
molarity
, strong to dissociation
View source
What is a weak acid and a weak base?
Do not fully
dissociate
in water
View source
What is Ka?
Acid dissociation constant
View source
How would you work out the pH of a weak acid?
Use
Ka
and pH = -log[
H+
]
View source
What is a titration?
Adding known
acid/base
to unknown
concentration
View source
What is the purpose of an indicator in titration?
To show that
neutralization
has occurred
View source
What is the equivalence point in titration?
Exact volume of
base
neutralizes
acid
View source
What generally happens to the pH around the equivalence point?
pH
changes
rapidly
View source
What are the titration curves for different acid-base combinations?
Strong acid
with strong base:
steep curve
Strong acid with
weak base
: gradual rise
Weak acid with weak base: shallow curve
Weak acid with strong base: initial rise, then steep
View source
What is the significance of the equivalence point in titration?
Indicates complete
neutralization
Essential for accurate
concentration
determination
Guides the choice of
indicator
View source
What is the titration curve for a weak acid with a weak base?
It shows gradual
pH changes
.
View source
What is the titration curve for a weak acid with a strong base?
It shows a steep increase in
pH
.
View source
What is the equivalence point in titration?
The exact volume of
base
neutralizing
acid
.
View source
What happens to the pH around the equivalence point?
There is a large and rapid change in pH.
View source
How do you calculate the concentration of a reactant?
Use
mols
and
volume
from the balanced equation.
View source
What is the end point in titration?
The volume when the
indicator
changes color.
View source
What are the properties of a good indicator for a reaction?
Sharp
color change
(not gradual)
End point matches
equivalence point
Distinct color change for clarity
View source
Which indicator is used for a strong acid-strong base titration?
Phenolphthalein
or
methyl orange
.
View source
Which indicator is used for a strong acid-weak base titration?
Methyl orange
.
View source
Which indicator is used for a strong base-weak acid titration?
Phenolphthalein
.
View source
See all 57 cards
See similar decks
acids bases
A-level chemistry
15 cards
Acids+Bases
48 cards
acids & bases
203 cards
Chemistry-chemical changes
17 cards
Acids & Bases
PHYSICAL
24 cards
Acids & Bases
152 cards
Acids & Bases
36 cards
acids + bases
18 cards
Acids+Bases
169 cards
Acids + bases
17 cards
Acids&bases
2 cards
Acids & Bases
22 cards
Acids & Bases
31 cards
acids & bases
science test apr 2025
65 cards
acids bases
60 cards
Acids + bases
11 cards
acids & bases
110 cards
Acids & Bases
29 cards
Acids & Bases
51 cards
acids, bases & pH
40 cards
acids, bases, buffers
171 cards