<p>I have a question about equilibrium-constant expressions.</p>
<p>According to my teacher, you can mix and match partial pressures and molar concentrations in a Keq expression...but I always thought that they all had to be of the same "type". What happens when you have gases and ions in the same reaction? How do you write the Keq?</p>
<p>I dont know if you can mix the two but there is a simple formula to figure out the Kp from the Kc and vice versa. Kp=Kc times (RT) to the power change in mole (moles reactants-moles products). You can find this equation on the AP chem formula sheets. Hope that helps!</p>
<p>think about that. having ions and gasses in the same reaction? in order to have ions you need solutions....... like water. you can't have molarity of gases.</p>
<p>you can change a Kp to a Kc and vice-versa, but no you can't mix and match P and M.</p>
<p>CO2 in soda....
we had a problem about some reaction dealing with carbonated water solvent....and there was CO2, along with ions in solution</p>