Friday, 23 September 2011
Q4. Sulfuric acid is titrated with potassium hydroxide in the preparation of potassium sulfate salt.
(i) Explain why this method is recommended for the preparation for this salt.
Ans: Potassium sulfate is soluble salt, so it cannot be prepared by precipitation method. For group (I) and ammonium salt, titration method is used. Potassium sulfate is a group (I) salt, hence it can be prepared using titration method.
(ii) Write an ionic equation for the reaction.
Ans: H+ (aq) + OH- (aq) = H2O (L)
(i) Explain why this method is recommended for the preparation for this salt.
Ans: Potassium sulfate is soluble salt, so it cannot be prepared by precipitation method. For group (I) and ammonium salt, titration method is used. Potassium sulfate is a group (I) salt, hence it can be prepared using titration method.
(ii) Write an ionic equation for the reaction.
Ans: H+ (aq) + OH- (aq) = H2O (L)
what we could have been, 06:18.
