What is the kb expression for aniline c6h5nh2?

The Kb expression for aniline (C6H5NH2) is a measure of the basicity of the compound. Aniline is a weak base due to the presence of the amino group (-NH2) on the benzene ring.

The Kb expression for aniline is calculated using the equation:

Kb = [C6H5NH2+][OH-] / [C6H5NH2]

Where:

• [C6H5NH2+] represents the concentration of the anilinium ion (C6H5NH3+) formed when aniline accepts a proton.
• [OH-] represents the concentration of hydroxide ions in the solution.
• [C6H5NH2] represents the concentration of aniline.

Aniline is a weak base with a Kb value of approximately 4.6 x 10^-10. This means that in a 1 M solution of aniline, only a small fraction of aniline molecules will accept a proton to form the anilinium ion.

Overall, the Kb expression for aniline gives insight into the basicity of the compound and helps in understanding its chemical properties.