pKa

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Rhea Shah 2F
Posts: 97
Joined: Thu Jul 25, 2019 12:17 am

pKa

Postby Rhea Shah 2F » Sun Jan 19, 2020 5:04 pm

What is the relationship between pKa and strength of the acid?

Elena Bell 1C
Posts: 64
Joined: Thu Jul 11, 2019 12:16 am

Re: pKa

Postby Elena Bell 1C » Sun Jan 19, 2020 5:06 pm

An acid is stronger if it has a lower pKa. It's similar to how a lower pH means an acid is stronger.

Callum Guo 1H
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Joined: Fri Aug 02, 2019 12:15 am
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Re: pKa

Postby Callum Guo 1H » Sun Jan 19, 2020 5:26 pm

Lower pKa means a stronger acid

MaggieHan1L
Posts: 100
Joined: Thu Jul 11, 2019 12:17 am

Re: pKa

Postby MaggieHan1L » Sun Jan 19, 2020 5:42 pm

Lower pKa means a less negative Ka which means that there is a high amount of dissociation and thus a stronger acid.

lauraxie2e
Posts: 108
Joined: Fri Aug 09, 2019 12:17 am

Re: pKa

Postby lauraxie2e » Sun Jan 19, 2020 5:46 pm

its inverse; lower pKa is a stronger acid

Vincent Leong 2B
Posts: 207
Joined: Fri Aug 09, 2019 12:15 am

Re: pKa

Postby Vincent Leong 2B » Sun Jan 19, 2020 5:52 pm

high pka = low ka = weak acid
low pka = high ka = strong acid

Viviana Velasquez
Posts: 97
Joined: Sat Jul 20, 2019 12:15 am

Re: pKa

Postby Viviana Velasquez » Sun Jan 19, 2020 6:45 pm

They're inversely related:
lower pKa= stronger acid
higher pKa= weaker acid

Jesse H 2L
Posts: 58
Joined: Fri Aug 09, 2019 12:17 am
Been upvoted: 1 time

Re: pKa

Postby Jesse H 2L » Sun Jan 19, 2020 9:11 pm

inverse relationship, high Ka, low pka means stronger acid, low Ka, high pka weaker acid

Samuel Tzeng 1B
Posts: 103
Joined: Sat Aug 24, 2019 12:15 am

Re: pKa

Postby Samuel Tzeng 1B » Sun Jan 19, 2020 9:12 pm

A stronger acid will have a lower pKa

Rafsan Rana 1A
Posts: 55
Joined: Sat Aug 24, 2019 12:16 am

Re: pKa

Postby Rafsan Rana 1A » Sun Jan 19, 2020 10:13 pm

pKa = -log Ka; so according to that equation, the lower the pKa is, the higher the Ka will be meaning it is a stronger acid. The higher the pKa is, the lower the Ka will be meaning it will be a weaker acid.

Alfred Barrion 2H
Posts: 100
Joined: Sat Jul 20, 2019 12:16 am

Re: pKa

Postby Alfred Barrion 2H » Sun Jan 19, 2020 10:14 pm

the lower the pKa = the stronger the acid

Nuoya Jiang
Posts: 99
Joined: Sat Sep 14, 2019 12:17 am

Re: pKa

Postby Nuoya Jiang » Sun Jan 19, 2020 10:19 pm

The stronger an acid, the smaller the pka.

Anushka Chauhan2B
Posts: 51
Joined: Sat Aug 24, 2019 12:16 am

Re: pKa

Postby Anushka Chauhan2B » Sun Jan 19, 2020 10:33 pm

Lower pKa corresponds to a stronger acid.

SimranSangha4I
Posts: 99
Joined: Sat Sep 14, 2019 12:17 am

Re: pKa

Postby SimranSangha4I » Sun Jan 19, 2020 10:34 pm

The lower the pKa, the stronger the acid


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