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25-12-2023
Chemistry

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A convenient way to produce very high purity oxygen in the laboratory is to decompose KMnO4(s) at high temperature according to the following chemical equation: 2KMnO4(s) → K2MnO4(s) + MnO2(s) + O2(g) If 2.50 L of O2(g) is needed at 1.00 atm and 20°C, what mass of KMnO4(s) should be decomposed? Assume the decomposition of KMnO4(s) goes to completion

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