A student reacted dilute nitric acid with lead(II) oxide to prepare lead(II) nitrate. The diagram shows the stages in the method used.
Complete the boxes to identify the pieces of apparatus.
Why is the dilute nitric acid heated?
The lead(II) oxide was weighed before and after the additions.
Use the balance diagrams to work out the mass of lead(II) oxide added to the dilute nitric acid.
i) How would the student know when all of the dilute nitric acid had reacted in stage 2?
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ii) What method is used to separate the mixture in stage 3?
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iii) What term is used to describe the unreacted lead(II) oxide?
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