Calcium carbonate decomposes when heated to produce calcium oxide and carbon dioxide:
calcium carbonate→calcium oxide+carbon dioxide \text{calcium carbonate} \rightarrow \text{calcium oxide} + \text{carbon dioxide} calcium carbonate→calcium oxide+carbon dioxideIn an experiment, a student heated 15.00 g of calcium carbonate strongly in a crucible until the mass of the solid remained constant.
The calcium oxide was collected and its mass was determined.
The results of the experiment are shown in the table.
| Mass in g | |
|---|---|
| Mass of calcium carbonate | 15.00 |
| Mass of calcium oxide obtained from the reaction | 6.20 |
| Theoretical mass of calcium oxide formed | 8.40 |
State the meanings of the terms actual yield and theoretical yield.
Practise Edexcel GCSE Chemistry Quantitative analysis with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.