EASY
AS and A Level
IMPORTANT
Earn 100

Make a list of strong acids and weak acids and strong bases and weak bases. 

Important Questions on Further Aspects of Equilibria

MEDIUM
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 21 - Further Aspects of Equilibria>BEFORE YOU START>Q 4
Select a weak acid and write an equilibrium expression for the acid. Note that the process is the same as for writing equilibrium expressions for K that you used Ka instead of Kc .
MEDIUM
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 21 - Further Aspects of Equilibria>BEFORE YOU START>Q 5
Explain why the equation H+ + OH- →H2O applies to any acid-alkali reaction.
MEDIUM
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 21 - Further Aspects of Equilibria>BEFORE YOU START>Q 6
Write a paragraph describing how to carry out an experiment to find the enthalpy change of neutralisation of an acid by an alkali.
MEDIUM
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 21 - Further Aspects of Equilibria>BEFORE YOU START>Q 7
Explain the meaning of the terms: solute, solution, salt, sparingly soluble, polarisation, non-polar, enthalpy change, hydration.
MEDIUM
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 21 - Further Aspects of Equilibria>Questions for discussion>Q •
Make a list of the disadvantages of hard water.
 
HARD
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 21 - Further Aspects of Equilibria>Questions for discussion>Q •
Find out some ways of making the water softer.
 
HARD
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 21 - Further Aspects of Equilibria>Questions for discussion>Q •
Use the ion-exchange equation for softening water to suggest how you could convert the resin back to its original form.
 
MEDIUM
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 21 - Further Aspects of Equilibria>Question>Q 1

Identify the acid and the base on the right-hand side of these equilibria.

HCIO2 + HCOOH ⇌ CIO2- + HCOOH2+