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ICSE Class 10 Answered

The mass of CO2 that shall be obtained by heating 10kg 80% pure lime stone? A-line. 4kg,b-6.6kg,c-3.52kg,d-8.8kg
Asked by amitjena226 | 30 Nov, 2017, 10:25: AM
answered-by-expert Expert Answer
space space space space space space space space Molar space mass space of space CaCO subscript 3 space equals space 100 space straight g space space 10 space kg space 100 percent sign space pure space CaCO subscript 3 space equals space 10 space kg space CaCO subscript 3 therefore 10 space Kg space 80 percent sign space space pure space CaCO subscript 3 space equals space 8 space space kg space CaCO subscript 3 space space space space space straight N o. space of space moles space of space CaCO subscript 3 space end subscript space equals space fraction numerator 8 cross times 10 cubed space straight g over denominator space 100 end fraction space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 80 space moles space space space CaCO subscript 3 space end subscript space rightwards arrow with increment on top space space CaO space space plus space space space CO subscript 2 therefore space 1 space mole space of space space CaCO subscript 3 space end subscript space gives space 1 space mole space of space CO subscript 2 space 80 space mole space of space space CaCO subscript 3 space end subscript space will space give space space space 80 space moles space of space CO subscript 2 1 space mole space of space CO subscript 2 space equals space 44 space straight g 80 space moles space of space CO subscript 2 space equals space 80 cross times 44 space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 3520 space straight g space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals space 3.52 space Kg space space CO subscript 2
Answered by Varsha | 30 Nov, 2017, 01:51: PM

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ICSE 10 - Chemistry
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