K

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Sophia Dinh 1D
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

K

Postby Sophia Dinh 1D » Fri Feb 14, 2020 1:31 pm

How do you know what to include and exclude when calculating K?

Connie Chen 1E
Posts: 51
Joined: Mon Jun 17, 2019 7:24 am

Re: K

Postby Connie Chen 1E » Fri Feb 14, 2020 1:42 pm

You generally include gases and aqueous solutions and exclude solids and liquids in the calculation of K. This is because solids and liquids are usually present in excess so a change to its concentration results in a negligible change.

AKhanna_3H
Posts: 104
Joined: Wed Sep 18, 2019 12:19 am

Re: K

Postby AKhanna_3H » Fri Feb 14, 2020 2:00 pm

Only include gases and aqueous solutions. Disregard solids and liquids.

Jarrett Peyrefitte 2K
Posts: 102
Joined: Sat Aug 24, 2019 12:16 am

Re: K

Postby Jarrett Peyrefitte 2K » Fri Feb 14, 2020 4:08 pm

Solids and liquids are always excluded regarding K and Q.

205405339
Posts: 77
Joined: Thu Jul 11, 2019 12:16 am

Re: K

Postby 205405339 » Fri Feb 14, 2020 4:09 pm

when calculating K look for (aq) or (g) and exclude (s) or (l)

Jaci Glassick 2G
Posts: 104
Joined: Sat Jul 20, 2019 12:16 am

Re: K

Postby Jaci Glassick 2G » Fri Feb 14, 2020 5:40 pm

Solids and liquids are excluded when calculating Q and K. Gases and aqueous particles are included.

Kallista McCarty 1C
Posts: 212
Joined: Wed Sep 18, 2019 12:18 am

Re: K

Postby Kallista McCarty 1C » Fri Feb 14, 2020 6:54 pm

You use gaseous and aqueous! You don't put in solids or liquids

J_CHEN 4I
Posts: 54
Joined: Tue Nov 14, 2017 3:01 am

Re: K

Postby J_CHEN 4I » Sun Feb 16, 2020 6:12 pm

For a gas (g) and solutes in solutions (aq), their activity is included for solving for K. For pure solids (s) and liquids (l), their activities are 1.

KHowe_1D
Posts: 103
Joined: Thu Jul 25, 2019 12:15 am
Been upvoted: 1 time

Re: K

Postby KHowe_1D » Sun Feb 16, 2020 8:12 pm

You include gases and aqueous solutions but exclude liquids, such as water, and solids.

Hannah Pham
Posts: 104
Joined: Fri Aug 09, 2019 12:17 am

Re: K

Postby Hannah Pham » Sun Feb 16, 2020 8:14 pm

To calculate K, use gases and aqueous solutions but not solids or liquids.

Kate Osborne 1H
Posts: 102
Joined: Fri Aug 30, 2019 12:16 am

Re: K

Postby Kate Osborne 1H » Sun Feb 16, 2020 8:17 pm

use anything that has a concentration or a pressure (so only aqueous things or gases!)

sarahartzell1A
Posts: 56
Joined: Fri Sep 28, 2018 12:17 am

Re: K

Postby sarahartzell1A » Sun Feb 16, 2020 8:22 pm

Exclude pure solids and liquids!

BCaballero_4F
Posts: 94
Joined: Wed Nov 14, 2018 12:22 am

Re: K

Postby BCaballero_4F » Mon Mar 02, 2020 10:35 pm

You would include whatever has (g) and (aq) from the reaction, and not solids or liquids


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