12.49 Stronger Base

Acidity
Basicity
The Conjugate Seesaw

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Victoria Ford 4D
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Joined: Fri Sep 25, 2015 3:00 am

12.49 Stronger Base

Postby Victoria Ford 4D » Tue Dec 01, 2015 11:23 pm

Which is the stronger base, the hypobromite ion, BrO , or morphine, C17H19O3N? Justify your answer.

Without Kb values, how would you determine this?

Chem_Mod
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Re: 12.49 Stronger Base

Postby Chem_Mod » Wed Dec 02, 2015 4:46 pm

Morphine is basic because it has a nitrogen with lone pair. These kinds are always weak base.

BrO- is the conjugate base of a weak acid, so it must be relatively strong. So BrO- is the stronger base.

704647747
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Re: 12.49 Stronger Base

Postby 704647747 » Sat Dec 05, 2015 10:59 am

How do we know that BrOH is a weak acid?

Xiaoman_Kang_2J
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Joined: Wed Sep 21, 2016 3:00 pm

Re: 12.49 Stronger Base

Postby Xiaoman_Kang_2J » Tue Nov 22, 2016 1:03 pm

Jane Park 1A wrote:How do we know that BrOH is a weak acid?


HBrO is a weaker acid compared to HClO. This is because Cl is more electronegative than Br. Thus, Cl will draw more electron density towards itself and away from the O-H bond which makes the O-H bond in HClO easier to break. Therefore, HBrO is a weak acid (weaker than HClO).

Camille 4I
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Re: 12.49 Stronger Base

Postby Camille 4I » Wed Dec 04, 2019 9:55 pm

How do we know that HBrO is the corresponding weak acid that creates the base BrO-?

FDeCastro_1B
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Re: 12.49 Stronger Base

Postby FDeCastro_1B » Fri Dec 06, 2019 1:47 pm

Camille 4I wrote:How do we know that HBrO is the corresponding weak acid that creates the base BrO-?


I think it's the conjugate acid that receives a proton from the base. Hence why there is now an H in the formula.

FDeCastro_1B
Posts: 54
Joined: Thu Jul 25, 2019 12:16 am

Re: 12.49 Stronger Base

Postby FDeCastro_1B » Fri Dec 06, 2019 1:48 pm

Could you argue that BrO is the stronger base because it's protonated more completely than morphine?


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