How many grams of kno3 were present in the original sample

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Reference no: EM13118490

A 49 gram sample of impure potassium nitrate (KNO3) was heated to complete decomposition according to the equation 2 KNO3(s) → 2 KNO2(s) + O2(g) After the reaction was complete, the volume of the dry gas produced was 3 liters at 79.7?C and 786 torr. How many grams of KNO3 were present in the original sample? (Assume that only the potassium nitrate had decomposed.)Answer in units of grams

Reference no: EM13118490

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