1. a student mixes 5.0 ml 2.00 x 103 m fe(noh with 5.0 ml 2.00 x 10 m kscn. she finds that in the equilibrium mixture the concentration of fescn" is 1.2 x 10*m. find ke for the reaction fe (aq)+scn(aq)fescn(aq) step 1 find the number of moles fe and scn initially present. (use eq. 3.) sample caleulation moles fe moles scn step 2 how many moles of fescn are in the mixture at equilibrium? what is the volume of the equilibrium mixture? (use eq. 3.) ml moles fescn2 sample calculation how many moles of fe and scn reacted to form fescn moles fe reacted moles scn reacted sample calculation step 3 how many moles of fe and scn remain in the solution at equilibrium? (use eq. 4 and th results of steps 1 and 2.) equilibrium moles fe equilibrium moles scn