Q- 3 g C^2H^4 gas requires oxygen gas ( O^2) for combustion which is obtained from pure Potassium Chlorate ( KClO^3). Mass of Potassium Chlorate is ____ ?
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Expert's answer
2015-05-21T10:14:15-0400
C2H4 + 3O2 = 2CO2+2H2O From the equation, 1 mole of C2H4 requires 3 moles of O2 for combustion. Consequently 3 g of C2H4requires X grams of O2 X = 3·3/1 = 9 (grams of O2)
2KClO3 = 2KCl + 3O2 From the equation, 3 moles of O2 are produced from 2 moles of Potassium Chlorate, So 9 grams of O2 areproduced from Y grams of Potassium Chlorate Y = 9·2/3 = 6 (grams of KClO3) Answer: 6 grams
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