User:Patrick Hampson/Notebook/chem471/2017/04/05

Project name

Main project page Previous entry      Next entry

Running UV-Vis and preparing buffers 4-11 We ran our solutions that were prepared yesterday, that we found out were not the correct pH. We made 0.2 M buffers for pH 4-9 using monobasic and dibasic sodium phosphate. We made them for pH 10-11 as well but it turns out that they cannot get above pH 9.1. Actual pHs are as follows: pH 4: 4.464 pH 5: 5.036 pH 6: 6.111 pH 8: 8.255 pH 9: 8.997 pH 10: 9.106 pH 11: 9.159