5.0mL of 5.4 x 10⁻⁴ M cl- is added 5.0 mL of 3.8 x 10⁻⁷ M Agt. Total volume is now 10.0 mL, and each concentration has been been diluted diluted in half. Write the ion product expression (Qc) for Agcl and determine its value using the diluted Concentrations ?