Which weak acid would be best to use when preparing a buffer
Favorites|Homepage
Subscriptions | sitemap
HOME > Chemistry > Which weak acid would be best to use when preparing a buffer

Which weak acid would be best to use when preparing a buffer

[From: ] [author: ] [Date: 11-11-09] [Hit: ]
E) 7.F) 2.5 x 10^-11-An acid with a Ka of 4.2 x 10^-10 has a pH of 9,377, so Id assume this is the one youd want to use.......
Which weak acid would be best to use when preparing a buffer solution with a pH of 9.40?

An acid with Ka =

A) 5.0 x 10^-6
B) 6.3 x 10^-5
C) 4.2 x 10^-10
D) 6.3 x 10^-8
E) 7.9 x 10^-7
F) 2.5 x 10^-11

-
An acid with a Ka of 4.2 x 10^-10 has a pH of 9,377, so I'd assume this is the one you'd want to use.
1
keywords: use,when,buffer,acid,weak,would,preparing,best,be,to,Which,Which weak acid would be best to use when preparing a buffer
New
Hot
© 2008-2010 http://www.science-mathematics.com . Program by zplan cms. Theme by wukong .