Pressure and Molarity

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Siddiq 1E
Posts: 106
Joined: Fri Aug 09, 2019 12:15 am

Pressure and Molarity

Postby Siddiq 1E » Fri Mar 13, 2020 1:25 pm

If you are given an equation whose reactants and products are all in gaseous phases, and also given their molar concentrations, how do you calculate K?

Diana A 2L
Posts: 106
Joined: Sat Aug 17, 2019 12:16 am
Been upvoted: 1 time

Re: Pressure and Molarity

Postby Diana A 2L » Fri Mar 13, 2020 1:33 pm

You just use the Molarity Values and find K based on concentration. You use whatever you’re given to find K. If given pressure, use pressure. If given concentration, use concentration. Don’t over-complicate it! Good luck!!

Ian Morris 3C
Posts: 101
Joined: Wed Sep 18, 2019 12:18 am

Re: Pressure and Molarity

Postby Ian Morris 3C » Fri Mar 13, 2020 2:30 pm

use ice table to concentrations at k then just put products over reactants

Ryan Yee 1J
Posts: 101
Joined: Sat Aug 17, 2019 12:16 am

Re: Pressure and Molarity

Postby Ryan Yee 1J » Fri Mar 13, 2020 3:32 pm

Put product concentration over reactant concentration raised to the powers of their individual stoichiometric coefficients and then solve for K. If your concentrations given aren't at equilibrium, you're going to have to make an ICE box and solve for the concentrations at equilibrium and then put product concentration over reactant concentration raised to the powers of their individual stoichiometric coefficients


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