2007-04-27 09:37:45 · 3 answers · asked by traych24 2 in Science & Mathematics ➔ Chemistry
You go back to your experiment and collect more data.
2007-04-27 09:41:47 · answer #1 · answered by Phil 5 · 0⤊ 1⤋
The value of the pH of a solution does not depend on the **volume** of that solution. It is a concentration.
If you have a solution that is 1.0 mole/liter in X, the concentration will be 1.0 mole/liter whether you use one liter, ten liters, or five milliliters.
So if your problem is that you have 0.005 grams of HCl dissolved in 5.0 ml, you can calculate the molarity of the solution by:
0.005 grams HCl / (36.46 grams/mole) = 0.000137 moles HCl
(0.000137 moles/5 ml) * (1000 ml/liter) = 0.0274 moles/liter
which is 0.0274M.
Since HCl is a strong acid, the [H+] = 0.0274M
and pH = -log[H+], so
pH = -log(0.0274) = 1.56
I hope that helps!
2007-04-27 09:57:24 · answer #2 · answered by Dave_Stark 7 · 0⤊ 0⤋
ph and ml are two different things. ml is a reference to fluid and mass. ph is a reference to acidty.
2007-04-27 09:44:51 · answer #3 · answered by peterregan50 2 · 1⤊ 0⤋