Hey there,
I'm an Australian student, I'm calling all the chemistry gurus to help me out. (I'm in high school here).
So basically, we need a bit of chem to do this practical in bio, which we're getting assessed on.
I need 5 test tubes with pHs: 3, 5, 7, 10.
So test tube 7 = distilled water.
My method needs to be something like add 1 drop of X into test tube 1, check pH, keep adding drop until its pH is 3.
Repeat for test tube 2 and 4 to get their pH to 5 and 10 respectively.
Anyone know these 2 solutions? To increase the pH and decrease it?
Please give me 2 simple solutions, cheers. I'm just a student studying bio in Aust, and I have no clue about chemistry. Just need help so I don't fail tomorrow.
Thanks,
Neil