Wittig Reaction:

Step $1$:

benzyl bromide triphenyl benzyltriphenylphosphonium phosphine bromide

$\backslash$table$[[$Reagent:$,\backslash$table$[[$Properties: $($MW$,],[$density$,$ concentration$)]],$Amount Used:,Moles:$],[$Benzyl bromide,$171\mathrm{.}17\frac{g}{?}$ mol,$300L,0\mathrm{.}00175],[$Triphenyl phosphine,$262\mathrm{.}24\frac{g}{m}ol,0\mathrm{.}905g,1\mathrm{.}906E-4$

Wittig Reaction:

Step $1$:

benzyl bromide triphenyl benzyltriphenylphosphonium

$\backslash$table$[[$Reagent:$,\backslash$table$[[$Properties: $($MW$,],[$density$,$ concentration$)]],$Amount Used:,Moles:$],[$Benzyl bromide,$171\mathrm{.}17\frac{g}{m}a,300L,0\mathrm{.}00175],[$Triphenyl phosphine,$262\mathrm{.}24$ glmoL,$0\mathrm{.}905g,1\mathrm{.}906E^{-4}$