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Chapter 16: Problem 56

Are all Brensted-Lowry bases also Lewis bases? Explain why or why not.

Short Answer

Expert verified
Answer: Yes, all Br酶nsted-Lowry bases are also Lewis bases because they have a lone pair of electrons that can be used to accept a proton (H+) as well as donate an electron pair.

Step by step solution

01

Define Br酶nsted-Lowry bases

Br酶nsted-Lowry bases are substances that can accept a proton (H+) from another substance in an acid-base reaction. In other words, a Br酶nsted-Lowry base is a proton acceptor.
02

Define Lewis bases

Lewis bases are substances that can donate an electron pair to another substance in an acid-base reaction. In other words, a Lewis base is an electron-pair donor.
03

Compare Br酶nsted-Lowry bases and Lewis bases

Now that we have defined both Br酶nsted-Lowry and Lewis bases, we can compare the two concepts. For a substance to be a Br酶nsted-Lowry base, it must have the ability to accept a proton (H+). In contrast, for a substance to be a Lewis base, it must have the ability to donate an electron pair.
04

Analyze the relationship between Br酶nsted-Lowry bases and Lewis bases

If a substance can accept a proton (H+), it means it has a lone pair of electrons available to interact with the proton. Thus, a Br酶nsted-Lowry base has the ability to donate an electron pair. Therefore, all Br酶nsted-Lowry bases can also be considered Lewis bases.
05

Conclude the relationship between Br酶nsted-Lowry bases and Lewis bases

In conclusion, all Br酶nsted-Lowry bases are also Lewis bases because they have a lone pair of electrons that can be used to accept a proton (H+) as well as donate an electron pair.

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