A student measured the temperature of the same solution five times using the same method. The results were recorded in a table.
| Measurement | Temperature |
|---|---|
| 1 | 36.8 ∘C36.8\ ^\circ\text{C}36.8 ∘C |
| 2 | 36.9 ∘C36.9\ ^\circ\text{C}36.9 ∘C |
| 3 | 37.0 ∘C37.0\ ^\circ\text{C}37.0 ∘C |
| 4 | 39.4 ∘C39.4\ ^\circ\text{C}39.4 ∘C |
| 5 | 37.1 ∘C37.1\ ^\circ\text{C}37.1 ∘C |
State which result should be excluded as anomalous and calculate the mean temperature of the remaining results.
95 exam-style questions on AQA GCSE Chemistry 3.1 Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations, covering 3.1.1 Conservation of mass and balanced chemical equations, 3.1.2 Relative formula mass, 3.1.3 Mass changes when a reactant or product is a gas, and 3.1.4 Chemical measurements. Each one has a worked solution and a mark scheme showing where the marks go.