基于绿色考虑的碱金属氢氧化物浓度的测定
|
|
胡新, 尹富玲, 杨军, 赵明
|
Determination of Alkali Hydroxide Concentration Based on Green Consideration
|
|
Xin Hu, Fuling Yin, Jun Yang, Ming Zhao
|
|
Table 3 The results of KOH concentration determined by the students.
|
| |
|
| Group | BTP Colorimetry n = 3 | Control n = 3 | Potentiometry n = 3 | | BMean ± SD (mol∙L-1) | Mean ± SD (mol∙L-1) | Mean ± SD (mol∙L-1) | | 1 | 0.08942 ± 0.00025 | 0.08972 ± 0.00040 | 0.08924 ± 0.00025 | | 2 | 0.08921 ± 0.00020 | 0.08936 ± 0.00005 | 0.08940 ± 0.00048 | | 3 | 0.08933 ± 0.00024 | 0.08951 ± 0.00005 | 0.09013 ± 0.00104 | | 4 | 0.08952 ± 0.00038 | 0.08798 ± 0.00077 | 0.08969 ± 0.00074 | | 5 | 0.08895 ± 0.00023 | 0.08979 ± 0 | 0.08894 n = 1 | | 6 | 0.08922 ± 0.00041 | 0.08960 ± 0.00040 | 0.09125 n = 1 | | 7 | 0.08914 ± 0.00064 | 0.08828 ± 0.00118 | | | 8 | 0.08952 ± 0.00018 | 0.08963 ± 0.00010 | | | 9 | 0.08929 ± 0.00037 | 0.08947 ± 0.00030 | | | 10 | 0.08927 ± 0.00069 | 0.08870 ± 0.00039 | | | Population | 0.08929 ± 0.00037 | 0.08921 ± 0.00076 | 0.08968 ± 0.00080 | | Mean ± SD | n = 30 | n = 30 | n = 14 | | P (2, 2) | 0.674 | | 0.0653 |
|
|
|