Chemistry, 12.01.2021 15:20 nestergurl101

(1) (c)
The experiment was done three times
The mass of copper oxide used and the mass of copper made was measured each time
The results are shown in the table
Experiment
1
2
3
Mass of copper oxide used
4.0
4.0
4.0
in 9
Mass of copper made ing
3.3
3.5
3.2
Calculate the mean mass of copper made in these experiments
Mean mass of copper made
(1)
(1) Suggest how the results of these experiments could be made more precise
(1)
(it) The three expenments gave slightly different results for the mass of copper made
This was caused by experimental error.
Suggest two causes of experimental error in these experiments
1.
2.

Answers: 1

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(1) (c)
The experiment was done three times
The mass of copper oxide used and the mass...