Problem: Rank the following compounds in increasing order of basicity.pyrrole     water       ammonia      hydroxide       pyridine

FREE Expert Solution

The more available the electrons, the more readily they can be donated to form a new bond to the proton and, and therefore the stronger base.

Factors governing basicity:

Electronegativity.  When comparing atoms within the same row of the periodic table, the more electronegative the atom donating the electrons is, the less willing it is to share those electrons with a proton, so the weaker the base.


Size. When comparing atoms within the same group of the periodic table, the larger the atom the weaker the H-X bond and the lower the electron density making it a weaker base.


Resonance.  Delocalization of electrons decreases charge density which makes it a weaker base.

View Complete Written Solution
Problem Details

Rank the following compounds in increasing order of basicity.

pyrrole     water       ammonia      hydroxide       pyridine

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Identifying Acids and Bases concept. You can view video lessons to learn Identifying Acids and Bases. Or if you need more Identifying Acids and Bases practice, you can also practice Identifying Acids and Bases practice problems.