Thursday
April 24, 2014

Homework Help: AP CHEMISTRY

Posted by NIKITA on Wednesday, February 15, 2012 at 5:05pm.

Phosphoric acid is triprotic acid (three ionizable hydrogens). The values of its stepwise ionization constants are Ka1= 7.5E-5, Ka2= 6.2E-8, and Ka3= 4.2E-13

1) Write the chemical equation for the first ionization reaction of phosphoric acid with water

2)Write the equilibrium constant expression (Ka1) for this reaction.

3)What would be the pH of a solution when [H3PO4]= [H2PO4-]?
(Note: pH= -log[H3O+])

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry - write the formula of each acid and identify each as a diprotic, a ...
Chemistry - Phosphoric acid, H3PO4(aq), is a triprotic acid, meaning that one ...
Chemistry - Phosphoric acid, H3PO4(aq), is a triprotic acid, meaning that one ...
Chemistry - Phosphoric acid, H3PO4(aq), is a triprotic acid, meaning that one ...
Chemistry - Givien a 2.0kg solution of phosphoric acid and water 53% phosphoric ...
Chemistry - Givien a 2.0kg solution of phosphoric acid and water 53% phosphoric ...
chemistry - Phosphoric acid is a triprotic acid with pKa's of 2.14, 6.86, and 12...
Chemistry - Given a 2.5 kg solution of phosphoric acid and water (56 % phophoric...
Chemistry - Tartaric acid has two acidic (ionizable) hydrogens. The acid is ...
chemistry - What volume of 0.0482 M Ba(OH)2 is required to neutralize exactly 16...

Search
Members