WorksheetsIB SL Acids and Bases
Total questions: 21
Worksheet time: 42mins
What is the formula for the conjugate base of the hydrogenphosphate ion, HPO42-?
H2PO4-
H3PO4
HPO4-
PO43-
Which are definitions of an acid according to the Bronsted-Lowry and Lewis theories?
Bronsted-Lowry theory is a proton donor, Lewis theory is electron pair acceptor
Bronsted-Lowry theory is a proton acceptor, Lewis theory is electron pair acceptor
Bronsted-Lowry theory is a proton acceptor, Lewis theory is electron pair donor
Bronsted-Lowry theory is a proton donor, Lewis theory is electron pair donor
Which species behave as Bronsted-Lowry acids in the following reversible reaction?
H2PO4-(aq) + CN-(aq) ↔ HCN(aq) + HPO42-(aq)
HCN and CN-
HCN and HPO42-
H2PO4- and HPO42-
HCN and H2PO4-
What is the difference between a conjugate Brønsted–Lowry acid–base pair?
Electron pair
Positive charge
Proton
Hydrogen atom
Which is an example of an amphiprotic species?
Al2O3
CO32−
P4O10
HPO42−
Which statement is incorrect for a 0.10 mol dm–3 HCOOH solution?
pH = 1
[H+] << 0.10 mol dm–3
[HCOO–] is approximately equal to [H+]
HCOOH is partially ionized
Which of the following gases does not result in acid deposition?
CO2
NO2
NO
SO2
Which products would be formed when hydrochloric acid reacts with magnesium oxide?
Water and Magnesium sulphate
Water and Magnesium carbonate
Hydrogen and Magnesium chloride
Magnesium chloride and water
Which of these pH values represent an acid?
4
8
10
12
Milk is a very weak acid. What might its pH value be?
6.5
7.8
4.2
12.2
When acids react with metals, they produce hydrogen gas and salt.
True
False
The pH value of an acid represents its __________ of positive ions in the solution
amount
concentration
color
charge
Which of the following pH values represents a base?
2.1
4.6
6.8
8.1
The strongest bases have pH values close to
0
14
7
5
Ocean water is only slightly basic. What might its pH value be?
5
8
12
2
NaOH may be found in drain cleaners and as a component of soaps. Is NaOH an acid or a base?
Acid
Base
Neither (Neutral)
Zn(OH)2 + HNO3 ---> H2O + Zn(NO3)2
Complete the following reaction:
H3PO4 + NaOH -->
Na3PO4 + H2O
Na +H2O
Na3PO4 + H2
Na3PO4 + H2O + CO2
Sulphuric acid + sodium carbonate
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