Thursday
October 23, 2014

Homework Help: chemistry

Posted by Glen on Thursday, March 7, 2013 at 5:35pm.

What molar ratio of acetic acid to sodium acetate is required to create a buffer solution at a pH of 4.89 at 25 degree C? Ka for acetic acid is
1.8 X 10-5

A. 2.9
B.0.56
C.1.4
D.0.72
E.0.2 ( I chose this and got is wrong)

I'm lost on how to do these problems, but I started out...

4.89=4.74 + log

got lost after that...

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

school - What is the pH of 0.1 M formic acid solution? Ka=1.7e10-4? What is the...
Biochem - You have prepared a 400 mL of a .210 M acetate buffer solution with a ...
Chemistry - What molar ratio of acetic acid to sodium acetate is required to ...
BIOLOGY - A reference calls for the use of "one litre of 0.1 molar acetate ...
chemistry - You want to make an acetic acid/acetate buffer, pH 3.8, with a ...
Chemistry - Acetic acid has a pK of 4.8. How many mL of 0.1M acetic acid and 0....
Chemistry(Please help) - For an acetic acid-sodium acetate buffer to have a pH ...
Chemistry - Calculate pH of an acetate buffer containing 27.5 mM acetic acid (...
chemistry - 1. Calculate pH of an acetate buffer containing 27.5 mM acetic acid...
Chemistry - You want to prepare a pH=4.50 buffer using sodium acetate and ...

Search
Members