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The dehydration yield of cyclohexanol to cyclohexene is 75%.What would be the yield if 100g of cyclohexanol is dehydrated?

$(a)\;61.7g\qquad(b)\;16.5g\qquad(c)\;6.15g\qquad(d)\;615g$

1 Answer

$C_6H_{13}OH\rightarrow C_6H_{12}$
Mole weight of $C_6H_{13}OH=102$
Mole weight of $C_6H_{12}=84$
$102g$ cyclohexanol =$84gC_6H_{12}$
$\therefore$ 100g cyclohexanol =$\large\frac{84\times 100g}{102}$$C_6H_{12}$
Also $\%$ yield is 75%
Weight of $C_6H_{12}=\large\frac{84\times 100\times 75}{100\times 102}$
$\Rightarrow 61.764$
Hence (a) is the correct answer.
answered Oct 29, 2013 by sreemathi.v
 

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