Results

Table1: Amount and Type of Gas produced

*Bold indicates the largest amounts

Copper Concentration (ppm)	Amount of gas produced (ml)		Type of gas
Copper Concentration (ppm)	Trail 1 (710 ml)	Trail 2 (1.5 L)	Trail 1	Trail 2
Control (regular sulphur & copper) – 0.4 Cu	47	87	No hydrogen identified	No hydrogen identified
0.8 Cu	40.3	76.5	Hydrogen	Hydrogen
1.0 Cu	48.8	90	Hydrogen	Hydrogen
1.6 Cu	56.3	102	Hydrogen	Hydrogen
2.0 Cu	38	70	Hydrogen	Hydrogen
Sulphur Deficient	60.4	115.6	Hydrogen	Hydrogen
Total gas:	290.8	541.1	X	X

Table 2: Amount and Type of Gas produced by Percentage

*Bold indicates the largest amounts

Copper Concentration (ppm)	Amount of gas produced (ml)
Copper Concentration (ppm)	Trail 1 (710 ml)	Trail 2 (1.5 L)
Control (regular sulphur & copper) – 0.4 Cu	16.16%	16.08%
0.8 Cu	13.86%	14.14%
1.0 Cu	16.78%	16.63%
1.6 Cu	19.36%	18.85%
2.0 Cu	13.07%	12.94%
Sulphur Deficient	20.77%	21.36%

(fig 7-1) Graph, Amount of Gas Produced (ml)

Note the two trials that were conducted for the experiment were different amounts- 710ml bottle and 1.5 L bottle. For this reason showing them in comparison by precentage it can be seen that they are very close - this shows the reproducibility of the experiment.

(fig 7-2) Graph, Gas Produced by Precentage

*0.4 ppm Cu produced no Hydrogen