Preparation of Salts
Chemistry ⇒ Acids, Bases, and Salts
Preparation of Salts starts at 10 and continues till grade 12.
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Describe how to prepare lead(II) sulfate in the laboratory.
Describe the difference between a normal salt and an acid salt, giving an example of each.
Describe the method to prepare sodium sulfate using sodium hydroxide and sulfuric acid.
Describe the process of preparing an insoluble salt using a precipitation reaction.
Describe the steps involved in preparing copper(II) sulfate crystals from copper(II) oxide and sulfuric acid.
Explain why excess base is added when preparing a salt from an insoluble base and an acid.
Explain why it is important to wash a precipitated salt with distilled water after filtration.
Explain why silver chloride cannot be prepared by the reaction of silver with hydrochloric acid.
Explain why sodium chloride cannot be prepared by the reaction of sodium with hydrochloric acid in the laboratory.
Explain why some salts are hydrated while others are anhydrous.
A student attempts to prepare barium sulfate by mixing solutions of barium chloride and sodium sulfate. After filtration, the residue is washed and dried. Explain why this method is suitable for preparing barium sulfate, but not for sodium sulfate.
Calculate the mass of sodium chloride that can be obtained by completely neutralizing 100 mL of 1.0 M hydrochloric acid with sodium hydroxide. (Molar mass of NaCl = 58.5 g/mol)
Describe the steps and chemical equations involved in preparing iron(III) chloride from iron and chlorine gas. What safety precautions should be taken during this preparation?
Explain why it is not possible to prepare calcium sulfate by reacting calcium chloride with sulfuric acid and then evaporating the solution to dryness.
Explain, with balanced equations, how you would prepare pure potassium chloride crystals from potassium carbonate and hydrochloric acid. Include all necessary steps and precautions.
State and explain two reasons why the preparation of sodium nitrate by the reaction of sodium hydroxide and nitric acid is best carried out using titration rather than direct mixing.
