Question

Equation 1: Co(H2O)62+ (aq)+ 4 Cl- (aq) ? CoCl42- (aq)+ 6 H2O (l) a. What happens...

Equation 1:

Co(H2O)62+ (aq)+ 4 Cl- (aq) ? CoCl42- (aq)+ 6 H2O (l)

a. What happens to the initial equilibrium (Eq. 1) when HCl is added to the CoCl2 solution?

b. What happens upon addition of AgNO3? Which direction does the initial equilibrium (Eq. 1) shift?

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Answer #1

a) When HCl is added to CoCl​​​2 , equilibrium shifts towrds product side .Because we are increasing concentration ,tof reactantshe Le Chatlier's principle causes the reaction to move in forward direction so that the increase in concentration of reactants can be minimised.

b) When AgNO​​​3 is added to the system ,Ag+ combines with chloride ions to form AgCl therefore decreasing the concentration of reactants .Now according to Le Chatelier's principle the reaction moves in backward direction to compensate the decrease in concentration of reactants.

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