Chemistry Kc Question

Hi! can anyone help with this question:

CO + 2H2 = CH3OH

0.430 mol of carbon monoxide is mixed with 0.860 mol of hydrogen. At equilibrium the total pressure in the flask is 250kPa and the mixture contains 0.110 mol of methanol.

Calculate the amount in moles of carbon monoxide present at equilibrium.

Calculate the partial pressure, in kPa, of carbon monoxide in this equilibrium mixture.

Original post by MrLemonMan

Hi! can anyone help with this question:

CO + 2H2 = CH3OH

0.430 mol of carbon monoxide is mixed with 0.860 mol of hydrogen. At equilibrium the total pressure in the flask is 250kPa and the mixture contains 0.110 mol of methanol.

Calculate the amount in moles of carbon monoxide present at equilibrium.

Calculate the partial pressure, in kPa, of carbon monoxide in this equilibrium mixture.

You are given the mol of methanol at equilibrium, so you can calculate the mol of reactants that have reacted. You are also given the initial mol of reactants so that gives you the equilibrium moles by subtraction.

Total pressure is the sum of the partial pressures AND the partial pressure of each gas is the mol fraction x the total pressure.