12.49 Determining Base Strength

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Megan Potter 1G
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12.49 Determining Base Strength

Postby Megan Potter 1G » Tue Jun 05, 2018 9:24 pm

12.49) Which is the stronger base, the hypobromite ion, BrO-, or morphine, C17H19O3N? Justify

Can someone explain what makes one base stronger than another?

Megan Potter 1G
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Re: 12.49 Determining Base Strength

Postby Megan Potter 1G » Tue Jun 05, 2018 9:28 pm

Megan Potter 1G wrote:12.49) Which is the stronger base, the hypobromite ion, BrO-, or morphine, C17H19O3N? Justify

Can someone explain what makes one base stronger than another?


just to add, the solutions manual says "the smaller the pKb (b is a subscript) of a base, the stronger the base". what is pKb?

Tiffany Chen 1A
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Re: 12.49 Determining Base Strength

Postby Tiffany Chen 1A » Tue Jun 05, 2018 9:31 pm

I think in general, since strong acids and bases are completely ionized in water, the more soluble an acid/base is in water, the stronger it is. So for this question, BrO- would be the stronger base.

Moris 1H
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Re: 12.49 Determining Base Strength

Postby Moris 1H » Sat Jun 09, 2018 5:22 pm

How would you know BrO- completely ionizes in water?

Chem_Mod
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Re: 12.49 Determining Base Strength

Postby Chem_Mod » Sun Jun 10, 2018 9:57 pm

pKb is like pKa, where Kb is the equilibrium constant showing the base dissociation reaction (just like what we saw for acids). You need to look up the pKb values in the textbook to answer this.


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