The formation of cyclohexene from cyclohexanol is shown as reaction below: H2SO4 A Cyclohexanol Cyclohexene A student started with 15 mL of cyclohexanol and added enough sulfuric acid to the reaction. After the reaction is completed, following procedures were applied to obtained crude product: Crude product was washed sequentially with brine and 10% Na2CO3 solutions. After that, CaCl2 was added to organic phase and this mixture was filtered. The obtained crude product was distilled, and 8.6 mL pure cyclohexene was obtained. (C:12, H:1, 0:16) a) Determine the theoretical and actual yield. (dcyclohexanor= 0.96 g/mL; dcyclohexene=0.81 g/mL) b) What is brine and why underlined procedures were done? Explain it briefly