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Calculate the quantity of heat (kJ) required to raise the temperature of 32.0 g water from 12oC to 54oC.
Specific Heat of Water 4.184 J/goC
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2KMnO 4 (s) → K 2 MnO 4 (s) + MnO 2 (s) + O 2 (g) If 2.50 L of O 2 (g) is needed at 1.00 atm and 20°C, what mass of KMnO 4 (s) should be decomposed? Assume the decomposition of KMnO 4 (s) goes to completion.
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