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CBSE Class 11-science Answered

1.34
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Asked by lovemaan5500 | 24 Jun, 2018, 06:09: PM
answered-by-expert Expert Answer
Given:
 
Mass of Fe = 0.79 g
 
Mass of s = 0.4 g
 
 
Fe space space plus space straight S space rightwards arrow space FeS space space 0.79 space straight g space of space Fe space combines space with space 0.4 space straight g space of space straight S space So comma space 1 space straight g space of space Fe space will space combine space with space fraction numerator 1 cross times 0.4 over denominator 0.79 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 almost equal to space space 4 over 7 space space....... open parentheses 1 close parentheses For space ferrous space sulphide space left parenthesis FeS right parenthesis Mass space of space Fe space equals space 2.8 space straight g Mass space of space FeS space equals space 4.4 space straight g Mass space of space straight S space equals 4.4 space minus 2.8 space space space space space space space space space space space space space space space space equals space 1.6 space straight g 2.8 space straight g space of space Fe space combines space with space 1.6 space straight g space of space straight S So comma space 1 space straight g space of space Fe space will space combine space with space fraction numerator 1.6 cross times 1 over denominator 2.8 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 equals 4 over 7 space space space............ open parentheses 2 close parentheses From space open parentheses 1 close parentheses space and space open parentheses 2 close parentheses space it space is space proved space that space the space given space data space is space according space to space the space law space of space constant space proportion.
Answered by Varsha | 25 Jun, 2018, 03:10: PM

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