Soluble salts can be made by reacting acids with soluble or insoluble reactants. Titration must be used if the reactants are soluble.
Which of these substances is a base?
Copper oxide
Magnesium chloride
Sulfur dioxide
Why is sodium chloride not made by reacting sodium with hydrochloric acid?
The reaction would be too slow
The reaction would not produce sodium chloride
The reaction is too vigorous
Which type of salt is made from sulfuric acid?
Sulfate
Sulfide
Sulfite
What is the name of the salt made by reacting zinc oxide with nitric acid?
Zinc nitride
Zinc nitrate
Zinc oxidate
Why is it important to add copper oxide to sulfuric acid until it is in excess when making copper sulfate?
If too little is added, the product would be copper sulfite
Adding excess copper oxide makes the reaction faster
Adding excess copper oxide makes sure the acid has all reacted
Which process is used to obtain solid zinc chloride from a solution of zinc chloride?
Crystallisation
Distillation
Filtration
What is used in a titration to show when the acid and alkali have exactly reacted together?
End-point
Indicator
Pipette
What name is given to titre values in a titration that are within 0.20 cm3 of each other?
Close
Concordant
Equal
In a titration, a student recorded titre values of 21.20 cm3, 21.10 cm3 and 21.60 cm3. What value should the student give as the mean titre?
21.15 cm3
21.20 cm3
21.30 cm3
Why is titration used when making a salt from a soluble base?
The reaction is slower and more controlled
The acid does not need to be heated
The reaction needs an indicator to show when it is finished