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solids and liquids

Posted: Sun Jan 13, 2019 3:36 pm
by alanaarchbold
Why don't the molar concentrations of solids and liquids change in a reaction?

Re: solids and liquids

Posted: Sun Jan 13, 2019 4:18 pm
by 505095793
Pure liquids and solids have definite molar concentrations. Gases and aqueous solutions have variable molar concentrations because there is a certain amount of moles of a substance in a certain volume, hence the molarity= moles/Liters. Therefore when pure solids and liquids are involved in a reaction there are no changes in the molarity (mol/L) so the concentrations are constant.

Re: solids and liquids

Posted: Sun Jan 13, 2019 7:05 pm
by 005113695
Solid and Liquid concentrations change very little, and the amount is insignificant so that they don't need to be included.

Re: solids and liquids

Posted: Sun Jan 13, 2019 8:40 pm
by Jchellis 1I
So because they are constants they have no effect on whether the reaction favors the reactants or the products?

Re: solids and liquids

Posted: Sun Jan 13, 2019 9:38 pm
by Anjali 4A
Because molar concentration of a pure substance (solid or liquid) does not change in a reaction and is therefore not included in equ. constant

Re: solids and liquids

Posted: Wed Mar 13, 2019 10:12 am
by allisoncarr1i
Jchellis 1I wrote:So because they are constants they have no effect on whether the reaction favors the reactants or the products?

yes that is correct