Write the reaction to prepare C2H5Br from (image attached) a) alcohol using PX3
b) Alcohol using HX

Ithink the answer is 56.

Adozen is 1221/12 = 1.751.75 x 12 = 21therefore, 1.75 is the answer.

Ci hope  it  you

Hbr dissociates to form h+ and br-ca(oh)2 dissociates to form ca2+ and 2oh-the h+ and oh- react to form waterassuming the reactants are dissolved in water, the net reaction is h+ + oh- —> h2oif you’re asked to show all components of the reaction, the complete reaction is 2hbr + ca(oh)2 —> cabr2 + 2h2o