Hello,
I am working on a take-home research chem lab. I had to research pH values for various different chemicals and list whether they were basic or acidic (that was the easy part). Now I need to find expected color/pH range with methyl orange, with bromthymol blue, and with phenophthalein for each of the chemicals. How do I estimate/calculate this?
For example, we were given Pepper with a pH range of 5.5-7.0. Now I need to calculate:
1. Expected color/pH range with methyl orange.
2. Expected color/pH range with bromthymol blue.
3. Expected color/pH range with phenophthalein.
Thanks!