Page 1 of 1
H2O as a Gas
Posted: Sun Jan 26, 2020 7:37 pm
by Jose Robles 1D
When producing an ICE table, what is done about H2O? Do we still exclude it even if it is a gas? (I'd think not, right?)
Re: H2O as a Gas
Posted: Sun Jan 26, 2020 7:42 pm
by KarineKim2L
If H2O is a gas, we include it in the ice table. If it is a liquid, we do not include it in the ice table.
Re: H2O as a Gas
Posted: Sun Jan 26, 2020 7:43 pm
by Jacob Puchalski 1G
Yeah you'd include it if it was a gas.
Re: H2O as a Gas
Posted: Sun Jan 26, 2020 7:43 pm
by saigorijavolu2k
Water is not used because it is a liquid. Pretend it is not there
Re: H2O as a Gas
Posted: Sun Jan 26, 2020 9:56 pm
by Caroline Zepecki
you only include gasses and aq things in the chemical equilibrium equation. That being said, water as a gas is included.
Re: H2O as a Gas
Posted: Sun Jan 26, 2020 10:04 pm
by Anna Heckler 2C
Water is not included if it's in its liquid state because it is considered a solvent. If it is in its gaseous form, then it is included in calculations.
Re: H2O as a Gas
Posted: Sun Jan 26, 2020 10:08 pm
by 105311039
Within your ICE table, you should only include aq solutions and gases. If H2O is presented as a gas then you should still put it in the ICE table.
Re: H2O as a Gas
Posted: Sun Jan 26, 2020 11:32 pm
by kendal mccarthy
if h2o is a gas, you include it in the ICE table. You only don't include substances that have a set amount of space they take up like a solid or a liquid.
Re: H2O as a Gas
Posted: Sun Jan 26, 2020 11:49 pm
by sarahartzell1A
If it is a gas or aqueous you include it, but if not you do not.
Re: H2O as a Gas
Posted: Thu Jan 30, 2020 5:24 pm
by CameronDis2K
In the ICE table, gases and aqueous (which is dissolved in H2O) solutions are included, not solids or liquids. Therefore, H2O (almost always a gas or liquid) is included only if its not a liquid.
Re: H2O as a Gas
Posted: Sun Feb 02, 2020 11:35 pm
by Juana Abana 1G
Yes, you would include it if it was a gas.
Re: H2O as a Gas
Posted: Sun Feb 02, 2020 11:36 pm
by Sean Tran 2K
Yes, include H2O as a gas, but not liquid.
Re: H2O as a Gas
Posted: Tue Mar 10, 2020 9:33 pm
by WGaines_2E
H2O(g) is included but it is not as a liquid because it is a solvent
Re: H2O as a Gas
Posted: Wed Jan 06, 2021 12:09 pm
by My-Lan Le 1L
We would only exclude it if it is in a solid or liquid form. However, if it is a gas, we would include it in the table.
Re: H2O as a Gas
Posted: Wed Jan 06, 2021 2:20 pm
by Jonathan Batac - 2D
If H20 was a pure substance in the reaction (either a liquid or solid) it should not be included. But as a gas (water vapor), always include it in the ICE table.
Re: H2O as a Gas
Posted: Wed Jan 06, 2021 2:24 pm
by Chem_Mod
The main thing to remember here is whether the H2O is being used in the reaction or is just passive as a solvent. Most of the times when it is present as a gas, that is being formed as a product or is reacting as a reactant. When it is a liquid it is usually used as a solvent, so it is not involved in the reaction and is thus not used in the equilibrium calculations.
Re: H2O as a Gas
Posted: Sat Jan 09, 2021 10:18 am
by alebenavides
it's included if its a gas !
Re: H2O as a Gas
Posted: Sat Jan 09, 2021 6:23 pm
by Catherine Bubser 2C
We would have to be given the state of H20 in the reaction, correct?
Re: H2O as a Gas
Posted: Sat Jan 09, 2021 8:09 pm
by Rich Luong 1D
Only when something is a solid or liquid will it not be included. For gaseous reactants/products, always include them!
Re: H2O as a Gas
Posted: Sun Jan 10, 2021 10:10 pm
by Juliana Rosales 1H
It depends on the state that it is in. Wether it is a gas or a liquid.
Re: H2O as a Gas
Posted: Sun Jan 10, 2021 10:12 pm
by Kyle_Lee_2B
We do not use H2O if it is a liquid, but do use H2O if it is a gas in an equilibrium constant question
Re: H2O as a Gas
Posted: Sun Jan 10, 2021 10:14 pm
by Mansi Solanki 3A
H2O in the gas state would be included in the ICE table while it would not be included while it is in the liquid form because then it would be considered a solvent.
Re: H2O as a Gas
Posted: Mon Jan 11, 2021 1:15 pm
by Pierce Newman 1A
because concentrations of liquids cannot change, liquid water is never considered for equilibrium. water's concentration as a gas can change so it would be considered and included in ICE table
Re: H2O as a Gas
Posted: Mon Jan 11, 2021 1:36 pm
by Jordan Tatang 3L
As a general rule don't include solids and/or liquids.
Re: H2O as a Gas
Posted: Mon Jan 11, 2021 11:52 pm
by Andy Hon 3E
When water is considered a liquid (essentially the solvent in the equation), the concentration of liquids does not change significantly to say it has changed in cc. However, when water is considered a gas, it is variable and can change.
Re: H2O as a Gas
Posted: Mon Jan 11, 2021 11:56 pm
by Chris 1C
Always exclude solids/liquids. Water as a liquid should not be in the equation, but water as a gas should.
Re: H2O as a Gas
Posted: Tue Jan 12, 2021 12:06 am
by austin-3b
Normally, you would exclude it. But if it's a gas, you put it in the ICE Table. Anything that isn't a solid or liquid is included.
Re: H2O as a Gas
Posted: Thu Jan 14, 2021 9:34 am
by Juwan_Madaki_3K
H2O would still be included as a gas. When it's a liquid/solvent, then we wouldn't include it.
Re: H2O as a Gas
Posted: Thu Jan 14, 2021 9:44 am
by Anna Yang 1A
Liquids and solids are not included because liquids tend to be in excess and remain virtually unchanged (and therefore cancel out in the numerator and denominator when calculating K) and solids don't have a concentration. Gases are included, and therefore H2O as a gas counts.
Re: H2O as a Gas
Posted: Thu Jan 14, 2021 9:59 am
by Chloe Shamtob 2H
If H2O is shown as a gas, you do not omit it from your ice table. It H2O is a liquid and is used as a solvent, you would not include it because it is in excess and the concentration of H2O does not change in the reaction.
Re: H2O as a Gas
Posted: Thu Jan 14, 2021 11:43 am
by Jiayi Wu 3J
The basic rule is: excluding all solids and liquids (solvent). H2O can be a part of the equation as long as it is not solid or liquid.
Re: H2O as a Gas
Posted: Thu Jan 14, 2021 7:27 pm
by AmyHo2K
We don't exclude H20 when it's a gas. We only exclude it when it's a liquid or solid.
Re: H2O as a Gas
Posted: Thu Jan 14, 2021 10:14 pm
by Crystal Pan 2G
We do not exclude any gases. We will only exclude H2O when it is in liquid form. All liquids and solids are excluded because they do not have concentration. All gases and aqueous solutions will be included in the equilibrium constant/expression.
Re: H2O as a Gas
Posted: Thu Jan 14, 2021 10:36 pm
by Simer_Shera_2D
Although we've typically seen it in its liquid form and do not use it, if H2O is present as a gas, then use it in the equilibrium calculation.
Re: H2O as a Gas
Posted: Thu Jan 14, 2021 11:29 pm
by Victoria Dao 3G
Hi! The rule is that in general, gases are always included no matter which molecule, and liquids and solids should always be excluded no matter which molecule. Even though H2O may typically be seen in its liquid form, if its in a gas form it should be included.
Re: H2O as a Gas
Posted: Fri Jan 15, 2021 2:45 am
by Margaret Xu 3C
We don't include solids or liquids when solving ICE tables. When water is a gas, I believe we include it in the ICE table because the partial pressure of the gas will affect the overall equilibrium. Please correct me if I'm wrong!
Re: H2O as a Gas
Posted: Fri Jan 15, 2021 4:42 am
by Aditya Sundaram 3D
Water would only be on the table if it was in its gaseous state.
Re: H2O as a Gas
Posted: Fri Jan 15, 2021 8:31 am
by Jason Knight - 1F
We would only include H20 in our I.C.E. table if H20 is labeled in the gaseous state in the reaction. As a reminder, liquids and solids are not included in the ICE table.
Re: H2O as a Gas
Posted: Fri Jan 15, 2021 5:18 pm
by Samudrala_Vaishnavi 3A
Generally, you would include it if it was a gas and if it is NOT a solvent (meaning it is on both sides of the equation since (aq) means something + H2O).
Re: H2O as a Gas
Posted: Fri Jan 15, 2021 5:57 pm
by Brenda Silva 1B
We would need to include H2O in the ICE table if it is a gas but would not be included if it's in a liquid state.
Re: H2O as a Gas
Posted: Fri Jan 15, 2021 6:47 pm
by Kaili Valenzuela 2B
We do not include any substance that is in a liquid or solid state. We only include gases and aqueous states, so in this case we would include H20 only if it was a gas.
Re: H2O as a Gas
Posted: Fri Jan 15, 2021 6:58 pm
by chinmayeec 2H
If H2O is acting a solvent, then they are not included in the ICE table since the concentration doesn't change from reactant to product. If H2O is in its gas phase, then it is included in the ICE table.
Re: H2O as a Gas
Posted: Fri Jan 15, 2021 7:32 pm
by Shalyn Kelly 3H
As stated above, you'd include water if in its gaseous state (as ICE uses aqueous and gases), but not if it was presented as a liquid (ICE doesn't include solvents or solids).
Re: H2O as a Gas
Posted: Fri Jan 15, 2021 7:37 pm
by gabbi_r2C
I agree with the previous responses. As a gas, H2O is not a solvent and thus has a measurable concentration change, so it must be included in the ICE table.
Re: H2O as a Gas
Posted: Sat Jan 16, 2021 1:16 am
by Tanner Bartyczak 1K
Water would be included if it was in a gaseous form.
Re: H2O as a Gas
Posted: Sat Jan 16, 2021 6:57 am
by Nina Fukui 2J
only included when water is in its gas state!
Re: H2O as a Gas
Posted: Sat Jan 16, 2021 10:07 am
by Anusha Chaudhary 1J
If water is in the gas phase, then you should include it. But if it is a liquid or solid, then you leave it out.
Re: H2O as a Gas
Posted: Sat Jan 16, 2021 10:11 am
by Emma_Barrall_3J
Include H2O in your K equation if it is g or aq :)
Re: H2O as a Gas
Posted: Sat Jan 16, 2021 10:29 am
by Navdha Sharma 3J
If H2O is a gas, you should include it in the ICE table!
Re: H2O as a Gas
Posted: Sat Jan 16, 2021 9:01 pm
by Jasmine Yi 1G
Yeah, if H2O is a gas, then it's included in the ICE table and all other calculations. But if it is in any other state, then it is excluded.
Re: H2O as a Gas
Posted: Sat Jan 16, 2021 9:05 pm
by Inderpal Singh 2L
Make sure to include H2O if it is a gas!
Re: H2O as a Gas
Posted: Sat Jan 16, 2021 11:20 pm
by Mingzi Yang 1E
If H2O is a gas, it should be included in the ICE table. If it is a liquid, we don't include it.
Re: H2O as a Gas
Posted: Sun Jan 17, 2021 2:12 am
by Karen Elrayes 1L
We only exclude solids and liquids. We usually exclude H2O because it is almost always the solvent, but since it is a gas it will be involved in the reaction and is, therefore, include in the k constant.
Re: H2O as a Gas
Posted: Sun Jan 17, 2021 2:31 am
by David Jen 1J
We include gases, except for inert gases.
Re: H2O as a Gas
Posted: Sun Jan 24, 2021 7:22 pm
by apurva-3E
If it is a gas, we would include it in the ICE table.
Re: H2O as a Gas
Posted: Sun Jan 24, 2021 7:35 pm
by Simran Bains 2C
If it is a gas, we would include it.
Re: H2O as a Gas
Posted: Sun Jan 24, 2021 7:52 pm
by Bryan Le 2K
You include H2O in the ice table only if it is a gas. If it is a liquid then we wouldn't include it.
Re: H2O as a Gas
Posted: Sun Jan 24, 2021 7:58 pm
by Edison Tham 3D
Since H2O would be in its gaseous form, we will include it in our reaction (since it's not in solid or liquid form, which we will not include).
Re: H2O as a Gas
Posted: Sun Jan 24, 2021 9:08 pm
by Joshua Chung 2D
If it is a gas, then we include it. If it is in liquid form (as is in most chemical equations dealt with so far), then we exclude it.
Re: H2O as a Gas
Posted: Sun Jan 24, 2021 10:29 pm
by 305405193
Just as previous replies have stated you would only include H2O in the reaction is it were a gas, not a liquid since liquids are never included.
Re: H2O as a Gas
Posted: Sun Jan 24, 2021 10:50 pm
by Armen_Isayan_2L
Hello! It is crucial to remember that when you are completing your ICE box that you include only aqueous solutions and ages. Hence, if H2O is expressed to be. a gas, then you should include it in the ICE box, however, if it was not, you would not include it.
Re: H2O as a Gas
Posted: Sun Jan 24, 2021 10:55 pm
by emwoodc
when forming the ICE table it's important to remember that we don't include anything in the solid and liquid form! we definitely include it when it's a gas or aqueous. So for H2O, we would include it if it was a gas!
Re: H2O as a Gas
Posted: Sun Jan 24, 2021 10:57 pm
by Aydin Karatas 1F
When water is the solvent, it's ignored. When it is involved in the reaction (ex. being in gas form), it is included in calculations.
Re: H2O as a Gas
Posted: Sun Jan 24, 2021 10:58 pm
by Aanya Tanti 3C
H20 as a liquid is excluded as in an aqueous environment there is a surplus of water in both reactants and products. As a gas, include it in ICE tables.
Re: H2O as a Gas
Posted: Sun Jan 24, 2021 11:19 pm
by Adrienne Chan 1G
It depends what phase it's in. If it's a liquid we ignore it, but if it's aqueous then we do count it.
Re: H2O as a Gas
Posted: Sun Jan 24, 2021 11:21 pm
by Amanda Bueno-Kling
Do we ignore both aqueous and liquid and only consider it when it is a gas?
Re: H2O as a Gas
Posted: Sun Jan 24, 2021 11:27 pm
by LeahSWM 2E
You would only include H2O if it is in a aqueous phase, not when it is in the liquid phase.
Re: H2O as a Gas
Posted: Sun Jan 24, 2021 11:30 pm
by Mariah Disc 2C
It is only ignored if it is a liquid.
Re: H2O as a Gas
Posted: Sun Jan 24, 2021 11:33 pm
by Sejal Parsi 3K
Because it is a gas, you would include it.
Re: H2O as a Gas
Posted: Mon Jan 25, 2021 5:23 pm
by Nick Saeedi 1I
if it is a gas it is included.