Applying Le Chateliers principle, what can you conclude about the change 2CrO24Cr2O27 and its dependence on hydrogen ions, H+?

1 Answer

Adding more hydrogen ions would favour the formation of Cr2O27

Removing hydrogen ions would favour the formation of CrO24

Explanation:

The net ionic equation is:

2CrO24+2H+Cr2O27+H2O

There are 2H+ ions on the LHS and none on the RHS.

Based on Le Chateliers Principle;

Adding more hydrogen ions (making conditions more acidic) would favour the formation of Cr2O27 because the equilibrium would shift to the side with fewer hydrogen ions to balance the system.

Removing hydrogen ions (making conditions more basic) would favour the formation of CrO24 because the equilibrium would shift to the side with more hydrogen ions to balance the system.