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Weight of copper oxide obtained by heati...

Weight of copper oxide obtained by heating `2.16 g` of metallic copper with `HNO_(3)` and subsequent ingnition was `2.70 g` In another experient, `1.15 g` of copper oxide on reduction yielded `0.92 g` of copper. Show that the results illustrance the law of definite proportions.

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To show that the results illustrate the law of definite proportions, we will analyze the two experiments provided in the question step by step. ### Step 1: Analyze the first experiment - **Given Data**: - Weight of metallic copper (Cu) = 2.16 g - Weight of copper oxide (CuO) obtained after ignition = 2.70 g - **Calculate the percentage of copper in copper oxide**: ...
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