If you mix 100mL of 4.0 pH acid and 100mL of 5.0 pH acid together, how do you find the new pH?

0 ⤊

If you mix 100mL of 4.0 pH acid and 100mL of 5.0 pH acid together, how do you find the new pH?

2007-03-31 20:48:20 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

2 answers

The answer is 4.26. Work out the moles of H+ ions in each, add them together, divide by the new volume, and work out the new [H+].

2007-03-31 22:14:55 · answer #1 · answered by Gervald F 7 · 0⤊ 0⤋

Ideally you would do a keq equation based on the relative proportions and pH and its been a REALLY long time since I've done that.

However, since the amounts are the same in this question, the new pH would be 4.5. Just logical. Add the two pHs together and divide by 2.

2007-04-01 04:28:26 · answer #2 · answered by Michael B 2 · 0⤊ 2⤋