oxygen is evolved by heating potassium chlorate using manganese dioxide as catalyst. 2kci03-->2kcl+302 calculate the mass of potassium chlorate required to produce 26.88 litres of oxygen at stp.( k =39, cl=35.5, O = 16).
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Explanation:
oxygen at stp.( k =39, cl=35.5, O = 16).
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