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Organic Chemistry – Some Basic Principles And Techniques

Question
CBSEENCH11007646
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In sulphur estimation, 0.157 g of an organic compound gave 0.4813 g of barium sulphate. What is the percentage of sulphur in the compound?

Solution

Mass of Organic compound =0.157 g
Mass of barium sulphate = 0.4813 g
Molecular mass of BaSO4
               = 137 + 32 + 64 = 233 g mol-1
233 g BaSO4 contains 32 g sulphur
therefore space 0.4813 space BasO subscript 4 space would space contain space space space space space space space space space space space space space space space space space space space space space equals space 32 over 233 cross times space 0.4813 space straight g space sulphur space space space space space space space space space space space space space space space space space space space space space equals space 0.066 space straight g space of space sulphur therefore space space Percentage space of space sulphur space equals space fraction numerator 0.066 over denominator 0.157 end fraction cross times space 100 space equals space 42.10 percent sign

Some More Questions From Organic Chemistry – Some Basic Principles and Techniques Chapter

What system of nomenclature is accepted universally?

What are isomers?

How many chain isomers are possible for pentane?

Which characteristic is common to different isomers of a compound?

 

Name three alkanes which do not show chain isomerism.

Name the types of structural isomerism shown by alkanes.

Name the four main types of structural isomerism. 

Write the three possible open chains of five carbon atoms

What types of structural isomerism is shown by the following pairs of organic compounds ?

Write the tautomer of acetaldehyde and write its IUPAC name.

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