Calculate the pH of a buffer solution that contains 0.61 M NaH2PO4, and 0.26 M Na2HPO4?

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Calculate the pH of a buffer solution that contains 0.61 M NaH2PO4, and 0.26 M Na2HPO4?

2007-11-15 03:39:47 · 3 answers · asked by Chem 111 1 in Science & Mathematics ➔ Chemistry

3 answers

In order to do this calculation, you will need to find the Ka or pKa for the H2PO4- ion. Then, use the Henderson-Haselbalch equation. The concentration of your acidic form will be 0.61 M, and of the basic form will be 0.26 M.

2007-11-15 03:53:27 · answer #1 · answered by hcbiochem 7 · 0⤊ 0⤋

Use formula NaVa=NbVb
where Na is the normality of the acid and Va is the volume in ml. And Nb is the normality of the base and Vb is the volume of the base.

2007-11-15 03:53:38 · answer #2 · answered by Sekhmet 1 · 0⤊ 0⤋

buddy try it out and buy a indicator its shows if its base, neutral, acid. And U need a blue and red Litmus paper that show the ph range chart!!!!

2016-04-04 02:39:38 · answer #3 · answered by ? 4 · 0⤊ 0⤋