`1.08 g` of copper wire was allowed to react with nitric acid. The resulting solution was dried and ignited when `1.35 g` of copper oxide was obtained. In another experiment `2.30 g` of cpper oxide was heated in presence of hydrogen yielding `1.84 g` of copper. Show that the above data in accordance with law of constant proporation.

Explanation

To demonstrate that the data provided is in accordance with the law of constant proportions, we will analyze the two experiments step by step.

### Step 1: Analyze the first experiment
In the first experiment, we have:
- Mass of copper wire (Cu) = 1.08 g
- Mass of copper oxide (CuO) produced = 1.35 g

To find the mass of oxygen (O) in the copper oxide, we can use the following formula:
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