Question

How many mL of bromobenzene are needed to prepare a solution of 1.15 equivalents of bromobenzene in 1.5 mL anhydrous diethyl ether?

Answer 1

The required amount of bromobenzene is 3.369 mL and the calculation is attached below :

Molecular weight of annydrous di-ethyl ether = 74.12 g (mel Molecular weight of bromobenzene = 157 armela Density of di-ethyl ether = 0.706 g/mL. Density of bromobenzene a 1.491 g/mL a Given, 1.5 mL of di-ethyl ether taken. Man of 1.5 mL of di ethyl ether = 11.5 1200) 9 = 2.1249 ) No. of moles in 2.124 gia 6221; ) = 0.028 moles, 74.12 ) to to instructed nted take take 115 1:15 equivalent caniro bromobenzene. It is

Molecule Molecular A Weight (g/mol) No. of moles Equivalent Di-ethyl ether 74.122 0.028 vite but 1 Brumoben zene. 157 0.032, 2015 Gospo Amount of bromobenzene in 0.032 moles = 1157 %0.032) g. et = 5:024.99 Volume of 5.024 g - 15.024) mL = 3.369 mb. 1.491/ And - 3.969 mL of bro bromobenzene are needed to prepare a solution of 115 equivalents of bromobenzene in 115 mL manny drous di-ethyl etherilt.