Answer:- 3.0 g
Solution:- Cyclohexanol gives cyclohexene on acid catalysis. Water molecule is actually given out in the reaction.
![cyclohexanol\overset{acid}{\rightarrow}cyclohexene+H_2O](https://img.qammunity.org/2019/formulas/chemistry/college/mbf0zb53dwsem5pf59si9vzki2rma0o4h7.png)
There is 1:1 mole ratio between cyclohexanol and cyclohexene. Let's calculate the theoretical yield of cyclohexene using stoichiometry as:
![3.7gcyclohexanol((1moleCyclohexanol)/(100.16gCyclohexanol))((1moleCyclohexene)/(1moleCyclohexanol))((82.14gCyclohexene)/(1moleCyclohexene))](https://img.qammunity.org/2019/formulas/chemistry/college/y685brxvlwkxb9zxmc64inhwcoxtyhvo2f.png)
= 3.0 g Cyclohexene
Therefore, the theoretical yield of cyclohexene is 3.0 g.