Ask a New Question

Question

I am given the following information:

Lactic acid................0.025M...................pH 2.74

How do I calculate the pKa? I don't know how to do it without the concentration. Help please!
7 years ago

Answers

bobpursley
dissociation: lactic acid>>>H+ + act-

ka= x*x/(.025-x)
but you know x=10^-2.74=.001819
ka= .001819^2/(.025-.001819)=.001819^2/0.023181= 0.000142735904=10^-3.85

pKa= 3.85
check my math
7 years ago
Andrea
Thank you so much!!!
7 years ago

Related Questions

see i know that there is information on judaism. but see i have the titles but i have to convert eac... hi, does anyone have any information on the poem "the railings' by roger mcgough. im after anythi... thank you Ms.Sue by this information. Then my answer should be C. Please use the following information to answer questions 4-5: Cash $10,000 Accounts Payable $7... I would like to inform you that your product is faulty. Put simply, it doesn't properly work. If yo... The m 2 = 47°. Use this information and the information on the diagram to answer all of the followin... How do you know that the information such as images was accurate on the web site that you research According to _ "only the informed ones should plan how to deliver the learning experiences*. O a.... Which of the following information is not usually included in a position statement? A. a sta...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use