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5.40 g of copper oxide was obtained by treating the 4.32 g of copper with nitric acid and subsequent ignition. Similarly 2.3 g of copper oxide on reduction gave 1.84 g of copper in another experiment. Show that these data illustrate the law of constant composition.​

User Karim
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1 Answer

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Here we have to show the ratio of reactants and products are same

Case-1

  • Copper oxide used=5.40g
  • Copper produced=4.32g

ratio:-


\\ \sf\longmapsto (5.40)/(4.32)=1.25\approx 1

Case:-2

  • Copper oxide used=2.3g
  • Copper produced=1.8g

ratio:-


\\ \sf\longmapsto (2.3)/(1.8)


\\ \sf\longmapsto 1.27\approx 1

Hence verified

User Gonen I
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