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ICSE Class 10 Answered

Calculate the percentage of Carbon in a 55% pure sample of Calcium Carbonate, [Ca-40, C-12, O-16].
 
Asked by Pushpanjali | 25 Oct, 2016, 08:08: PM
answered-by-expert Expert Answer
 
Molecular space weight space of space pure space CaCO subscript 3 space end subscript equals space 1 left parenthesis 40 right parenthesis space plus space 1 left parenthesis 12 right parenthesis space plus space 3 left parenthesis 16 right parenthesis space equals space 40 space plus space 12 space plus space 48 space equals space 100 Percentage space of space carbon space in space 100 percent sign space pure space CaCO subscript 3 space equals 12 over 100 cross times 100 space equals space 12 percent sign Percentage space of space carbon space in space 55 percent sign space pure space CaCO subscript 3 space end subscript equals space 55 over 100 space cross times space 12 percent sign space equals space bold 6 bold. bold 6 bold percent sign space
Answered by Prachi Sawant | 26 Oct, 2016, 12:28: PM

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