Question #a3830

1 Answer
P dilip_k
Oct 3, 2016

Equation of the Reaction

#Li_2S+Co(NO_3)_2->CoS+2LiNO_3#

This equation reveals that 1 mol #Li_2S# is required to react completely with 1 mol #Co(NO_3)_2#

Let V L be the volume of0.160 M #Li_2S# solution required to react completely with 125ml or 0.125L 0.160M #Co(NO_3)_2# solution.

#Li_2S# contains #Vxx0.160 mol# solute

#Co(NO_3)_2# solution contains #0.125xx0.160mol# solute

#Vxx0.160=0.125xx0.160#

#:.V=0.125L=125 mL#

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