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Some Basic Concepts Of Chemistry

Question
CBSEENCH11004933
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A substance has empirical formula CH2O, its vapour density is 30. What is its molecular formula?

Solution

Empricial formula mass of CH2O
                              space equals space 12 plus 2 space cross times 1 space plus 16 space equals space 30
Molecular space mass space equals space 2 space cross times space straight V. straight D. space equals space 2 space cross times space 30 space equals space 60 therefore space space space space straight n space equals space fraction numerator Molecular space mass over denominator Empirical space formula space mass end fraction space equals space 60 over 30 space equals space 2 therefore space space space Moleuclar space formula space equals space 2 space cross times space CH subscript 2 straight O space equals space straight C subscript 2 straight H subscript 4 straight O subscript 2

Some More Questions From Some Basic Concepts of Chemistry Chapter

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