solvent

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annikaying
Posts: 94
Joined: Sat Sep 14, 2019 12:16 am

solvent

Postby annikaying » Fri Jan 24, 2020 11:59 am

How can you tell when a solvent is part of the reaction? For example self test 5G.3A on page 401 how was it decided which molecules are involved in the equilibrium constant?

Daniela Shatzki 2E
Posts: 53
Joined: Sat Aug 24, 2019 12:16 am

Re: solvent

Postby Daniela Shatzki 2E » Fri Jan 24, 2020 12:12 pm

if the states of the molecules are gas (g) or aqueous (aq) they are involved in the reaction but if the states are liquid (l) or solid (s) they are not included.

Ayushi2011
Posts: 101
Joined: Wed Feb 27, 2019 12:17 am

Re: solvent

Postby Ayushi2011 » Fri Jan 24, 2020 12:13 pm

Only gaseous and aqueous substances will be included in the equilibrium constant equations.

Osvaldo SanchezF -1H
Posts: 122
Joined: Wed Sep 18, 2019 12:21 am

Re: solvent

Postby Osvaldo SanchezF -1H » Fri Jan 24, 2020 5:40 pm

A solvent is what you used to dissolve another substance and that substance tends to be a liquid of some sort. So if it stated that the state of the molecule is liquid you don't include it in finding's the equilibrium constant. Solvent=(usually) liquid. You don't uncle pure solids as well so anything that the equation states is in a state of solid.

705302428
Posts: 50
Joined: Sat Aug 24, 2019 12:16 am

Re: solvent

Postby 705302428 » Fri Jan 24, 2020 7:09 pm

Only products and reactants with (aq) or (g) next to them will be included in the equilibrium constant expression. If it has (l), which solvents will, or (s), it is not included in the expression.

WYacob_2C
Posts: 102
Joined: Sat Jul 20, 2019 12:16 am

Re: solvent

Postby WYacob_2C » Fri Jan 24, 2020 8:13 pm

Due to an activity of 1, solids and liquids are not included since they would have no impact on the equilibrium constant. Knowing this, you only include (aq) and (g) species to calculate the equilibrium constant.

Emil Velasco 1H
Posts: 96
Joined: Wed Nov 21, 2018 12:19 am

Re: solvent

Postby Emil Velasco 1H » Fri Jan 24, 2020 9:39 pm

Only include (aq) and (g) in your equilibrium, as solids and liquids/solvents like H2O are not.

Omar Selim 1D
Posts: 108
Joined: Sat Jul 20, 2019 12:16 am

Re: solvent

Postby Omar Selim 1D » Sun Jan 26, 2020 7:55 pm

A solvent is the substance in excess that other reactants are being dissolved in. E.g. Water is a solvent. Salt is a solute

Nikki Razal 1L
Posts: 116
Joined: Fri Aug 30, 2019 12:17 am
Been upvoted: 1 time

Re: solvent

Postby Nikki Razal 1L » Sun Jan 26, 2020 7:57 pm

pure substances (solids and liquids) won't be included in the equilibrium constant

Jasmine 2C
Posts: 184
Joined: Wed Sep 18, 2019 12:18 am

Re: solvent

Postby Jasmine 2C » Sun Jan 26, 2020 7:59 pm

If I'm not wrong, in the scopes of our class, solvents tend to be H2O (l) and will probably only be water.

Alexandra Bartolome 2H
Posts: 102
Joined: Sat Jul 20, 2019 12:17 am

Re: solvent

Postby Alexandra Bartolome 2H » Sun Jan 26, 2020 8:24 pm

Solvents tend to be liquid (l), thus won't be included in equilibrium constant calculations. Additionally, solids won't be included as well, due to their activities being equal to 1. Aqueous solutions and gases are always included.


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