Wednesday
August 27, 2014

Homework Help: Chemistry

Posted by Anonymous on Saturday, October 30, 2010 at 7:29pm.

Calculate the amount of NaH2PO4 and Na2HPO4 needed to prepare 100 mL of a buffer with a pH = 8.25 so that the sum of concentrations of HPO4 and H2PO4 ions is 0.5 M.
Where do I start? :/

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - How do I calculate the amount of grams of Na2HPO4 and NaH2PO4 to ...
Chemistry - How do I calculate the amount of grams of Na2HPO4 and NaH2PO4 to ...
Chemistry - How would you calculate the pH of the buffer if 1.0mL of 5.0M NaOH ...
Chemistry - How would you calculate the pH of the buffer if 1.0mL of 5.0M NaOH ...
Chemistry - pKa1 = 2.148, pKa2 = 7.198, pKa3 = 12.375 You wish to prepare 1.000L...
Analytical Chemistry - Phosphoric acid is a triprotic acid with the following ...
chemistry - how to prepare 1M,50ml buffer solution by taking Na2HPO4 and NaH2PO4...
chemistry - What happens when 4ml of 1M HCL is added to 100ml buffer made using ...
chemistry 2 - You are instructed to create 800. mL of a 0.69 M phosphate buffer ...
Chemistry - A buffer prepared by mixing equal amounts of the salts Na2HPo4 and ...

Search
Members