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Liquid and moles

Posted: Thu Feb 14, 2019 9:27 pm
by Jose Torres
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?

Re: Liquid and moles

Posted: Thu Feb 14, 2019 10:16 pm
by Eric Quach 1C
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.

Re: Liquid and moles

Posted: Fri Feb 15, 2019 1:17 pm
by Helen Zhao 1F
The equilibrium constant only applies for gases therefore solids and liquids are disregarded.

Re: Liquid and moles

Posted: Fri Feb 15, 2019 1:25 pm
by LaurenJuul_1B
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

Re: Liquid and moles

Posted: Fri Feb 15, 2019 2:15 pm
by Bruce Chen 2H
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.

Re: Liquid and moles

Posted: Fri Feb 15, 2019 2:18 pm
by Vanadium Wang 4H
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.

Re: Liquid and moles

Posted: Fri Feb 15, 2019 2:49 pm
by Lauren Huang 1H
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.

Re: Liquid and moles

Posted: Fri Feb 15, 2019 3:14 pm
by Cynthia Aragon 1B
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.

Re: Liquid and moles

Posted: Wed Feb 20, 2019 9:25 am
by Ricardo Martin 1J
Since H20 is a liquid it would not be used in the calculation of the equilibrium constant and ICE table.