Liquid and moles

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Jose Torres
Posts: 31
Joined: Fri Sep 28, 2018 12:22 am

Liquid and moles

Postby Jose Torres » Thu Feb 14, 2019 9:27 pm

When given a chemical equation and say on the reactants side there is 2H2O(l), do the 2 moles of H2O become apart of the equilibrium constant and ICE table? Or does is it still insignificant due to H2O being a liquid?

Eric Quach 1C
Posts: 30
Joined: Fri Sep 28, 2018 12:20 am

Re: Liquid and moles

Postby Eric Quach 1C » Thu Feb 14, 2019 10:16 pm

the two moles of water are not part of the ice table or the equilibrium constant as water is a liquid. This means that the water is solvent and there's an excess of it.

Helen Zhao 1F
Posts: 31
Joined: Fri Sep 28, 2018 12:20 am

Re: Liquid and moles

Postby Helen Zhao 1F » Fri Feb 15, 2019 1:17 pm

The equilibrium constant only applies for gases therefore solids and liquids are disregarded.

LaurenJuul_1B
Posts: 65
Joined: Fri Sep 28, 2018 12:17 am

Re: Liquid and moles

Postby LaurenJuul_1B » Fri Feb 15, 2019 1:25 pm

only is the H2O is a gas it will be used. if it is a liquid then it will not be in the keq or in the ICE table

Bruce Chen 2H
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

Re: Liquid and moles

Postby Bruce Chen 2H » Fri Feb 15, 2019 2:15 pm

We do not calculate ICE tables with liquids and solids as they have no effect on the molar concentrations in those calculations. So H20 would not be counted if it is a liquid.

Vanadium Wang 4H
Posts: 60
Joined: Fri Sep 28, 2018 12:19 am

Re: Liquid and moles

Postby Vanadium Wang 4H » Fri Feb 15, 2019 2:18 pm

H2O is a liquid so it would not be included in calculating the equilibrium constant. This is because solids and liquids do not affect the reactant amount at equilibrium in the reaction, so they are disregarded and kept at 1.

Lauren Huang 1H
Posts: 60
Joined: Fri Sep 28, 2018 12:16 am

Re: Liquid and moles

Postby Lauren Huang 1H » Fri Feb 15, 2019 2:49 pm

H20 (l) is not included in the equation because water is in a much larger quantity in comparison to the rest of the reactants so the change in its concentration during a reaction is negligible.

Cynthia Aragon 1B
Posts: 47
Joined: Mon Apr 09, 2018 1:38 pm

Re: Liquid and moles

Postby Cynthia Aragon 1B » Fri Feb 15, 2019 3:14 pm

Solids and liquids are not included because any change would not be sufficient to cause a drastic impact in the concentration of reactants. It is like saying you remove .10 cents from your $1000 savings account and thus that amount is not significant.

Ricardo Martin 1J
Posts: 63
Joined: Fri Sep 28, 2018 12:15 am

Re: Liquid and moles

Postby Ricardo Martin 1J » Wed Feb 20, 2019 9:25 am

Since H20 is a liquid it would not be used in the calculation of the equilibrium constant and ICE table.


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