User:Bc8689a/Notebook/bc1/2018/10/23

Project name

Main project page Previous entry      Next entry

Day 15:Testing the pH and changing the pH of 4 samples Today is day 15 we are mixing 4 new samples without boiling first but adding the initial 6D, 7D, 8D, and 10D drops of NaOH into each test tube then proceeding to make the solutions more basic. Try 6D: initial pH=2.95 and after 80 drops of NaOH the pH was 8.76 Try 7D: initial pH=2.90 and after 80 drops of NaOH the pH was 8.81 Try 8D: initial pH=3.02 and after 60 drops of NaOH the pH was 8.22 Try 10D: initial pH=2.89 and after 90 drops of NaOH the pH was 8.51 We also made 18 electrodes