Chapter 12: EDTA Equilibrium Example | CHM 214 | 120

[@donyas5240]

It’s perfect 👌

[@alio1666]

Thank you❤

[@jacobstewartchem]

You're welcome!

[@neomahlangu8728]

(at 4:10 minutes) why is the equilibrium defined as x+x=0.10-x? Instead of 1/2 x + 1/2 x = 0.1-x?

[@jacobstewartchem]

The reason you wouldn't use 1/2 x is because the number of moles of CaY2- that dissociates will be equal to the number of moles of free Ca2+ or EDTA, not half of the moles. When the CaY2- complex dissociates, it produces one Ca2+ and one EDTA, so the values of x should be equal.