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When heated, potassium permangnate decom...

When heated, potassium permangnate decomposes according to the following equation :
`2KMnO_(4)toK_(2)MnO_(4)+MnO_(2)+O_(2)`
Some potassium permangnate was heated in a test tube. After collecting one litre of oxygen at room temperature, it was found that the test tube had undergone a loss in mass of 1.32 g. If one litre of hydrogen under the same conditions of temperature and pressure has a mass of 0.0825 g, calculate the relative molecular mass of oxygen.

Text Solution

AI Generated Solution

To solve the problem, we need to calculate the relative molecular mass of oxygen (O₂) based on the information provided about the decomposition of potassium permanganate (KMnO₄) and the mass loss observed when one liter of oxygen is collected. ### Step-by-Step Solution: 1. **Understanding the Reaction**: The decomposition of potassium permanganate is given by the equation: \[ 2KMnO_4 \rightarrow K_2MnO_4 + MnO_2 + O_2 ...
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