Can anyone help me with this chem problem?

Colleges & Universities A-Z University of California - Los Angeles
1

<p>I need to find the pH of 50 ml of 0.50 M K2HPO4-.</p>

<p>Ka1 for H3PO4 is 7.11x10^-3.
Ka2= 6.34 x 10^-8
Ka3= 4.30x10^-13.</p>

<p>Thanks!</p>

2

<p>what is this for? chm 1? 2?</p>

3

<p>I'm guessing 20L...</p>

<p>Don't know if this is the right place for this, but set up an ICE and solve for <a href="or%20%5BH3O+%5D,%20whichever%20you%20prefer">H+</a>...</p>