What mass of kmno4s should be decomposed assume the


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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