Other questions in this quiz

2. A large Ka value indicates a large extent of dissociation therefore

  • A small extent of dissociation therefore the acid is weak
  • The acid is strong
  • The acid is weak

3. To work Ka out from pKa the formula is

  • Ka = 10^-pKa
  • pKa = -log10Ka
  • A small extent of dissociation therefore the acid is weak

4. As the [H+(aq)] for a strong acid is equal to the concentration of the acid, (therefore [H+(aq)] = [HA(aq)]) the pH

  • Can be easily calculated using pH = -log[H+(aq)]
  • Low

5. The Ka expression for weak acids can be simplified:

  • HCl
  • Ka = [H+(aq)]^2 / [HA(aq)]
  • Low

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Acids, bases and salts resources »