Thursday
March 5, 2015

Homework Help: chemistry

Posted by Anonymous on Sunday, November 15, 2009 at 8:35pm.

The question asks, "Butanoic acid has a partition coeff of 3.0 when distributed b/t water and benzene. Find the formal concentration of butanoic acid in each phase when 100 mL of 0.10 M aqueous butanoic acid is extracted with 25 mL of benzene at pH 10.00."

I know that the first step is to find D, where D = K(Ka)/[(Ka+[H+)].

So I calculated:
D = 3.0(1.52x10^-5)/[(1.52x10^-5+10^-10)].

The answer should have been D = 1.97 x 10^-5, but I didn't get this.

Please help!

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry - The question asks, "Butanoic acid has a partition coeff of 3.0 when ...
Chemistry (Acid-Base) - Butanoic acid (Ka = 1.52 x 10-5) has a partition ...
Chemistry - Butanoic acid (Ka = 1.52 x 10-5) has a partition coefficient of 3.0...
Chemistry (Re-post) - The distribution co-efficient of butanoic acid (pKa = 4.8...
Chemistry - Use activity coefficients to find the concentration of hydrogen ions...
Chemistry - A monoprotic acid with a Ka of 2.92 10-5 has a partition ...
Chemistry - The distribution co-efficient of butanoic acid (pKa = 4.8) between ...
Chemistry - Use activity coefficients to find the concentration of hydrogen ions...
Chemistry - Use activity coefficients to find the concentration of hydrogen ions...
chemistry - Use activity coefficients to find the concentration of hydrogen ions...

Members