WorksheetsIB Chem Chapter 8 Acids and Bases
Total questions: 12
Worksheet time: 7mins
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−
What describes HPO42−?
Amphiprotic but not amphoteric
Amphoteric but not amphiprotic
Amphiprotic and amphoteric
Neither amphiprotic nor amphoteric
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
How many times was Ross divorced?
3
2
4
1
a solution of 50cm3 HCl has a pH of 4. what is the final pH if 450cm3 of water is added?
3
4
5
6
which of the following can act as a lewis acid but not a BL acid????
BF3
PCl3
H2O
NH3
