2007-04-24 01:56:34 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
You can use NaOH also. I wouldn't see why not, I have completed many titrations with NaOH to test acid levels in water and other solutions.
Perhaps your experiment needs KOH specifically, but that would require more details to answer.
2007-04-24 02:01:40 · answer #1 · answered by jcann17 5 · 1⤊ 0⤋
If you're asking about starting from solid NaOH, the problem is that getting an accurate solution concentration is tricky because sodium hydroxide is so hydroscopic -- it absorbs moisture from the air. If you leave NaOH pellets on a piece of weighing paper on the scale, you can actually watch the mass increase over time as the pellets absorb moisture. Potassium hydroxide is a little less hydroscopic, so making an accurate stock solution is a bit easier.
If you are starting from a stock solution, however, they should be pretty much equal. However, in both cases, you should do a titration of your base stock solution with a known acid before titrating your unknown acid to confirm the concentration of the base.
2007-04-24 02:47:01 · answer #2 · answered by Dave_Stark 7 · 0⤊ 0⤋
I always use NaOH at school.
2007-04-24 02:04:05 · answer #3 · answered by Smithy 1 · 1⤊ 0⤋