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Planning of the experiment to investigate Dalton's law of constant composition Dalton in the eighteenth and nineteenth century stated that all pure samples of the same chemical compound contain the same proportions of mass As various copper compounds are readily available for laboratory use, the decision has been made to produce copper from black copper oxide and produce black copper oxide from copper by various methods, and to analysis the findings from this to see that the law of constant composition holds true. No other method or data was found to show or prove Daltons theory was true so the decision to use copper and black copper oxide was the best immediate solution. In the preliminary work, various ways of testing Dalton's theory was researched and tested: * Copper Nitrate (from which copper oxide will be made to make copper) * Copper Hydroxide (from which copper black oxide will be made to make copper) *...

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