Calculating eq with percentages of reaction

[Parker Smith]

How do you use the percentages of reactions to find the eq constant?

[Petrina Kan 2I]

You can use the percentages in order to find the concentrations of the reactants and products. When you know the percentages you can calculate the moles and therefore the molarity if you are given enough information.

[Kaitlyn Ang 1J]

Adding to this, for example, if you were asked to find K and you were given that N2 had an initial concentration of .1 mol and 60% of it turned into NH3 at equilibrium, you know that there is a final concentration of .06 mol NH3. And by doing ICE calculations, you can calculate the equilibrium molarity of the reactants as well, and you’re able to find K.

[805373590]

When given percentages you can easily find the moles of the products and reactants. From there you can calculate the molarity and concentration and plug it into the Kc formula to calculate the equilibrium constant of the reaction.