| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| laboratory preparation of ammonia gas pdf | 1.38 | 1 | 8747 | 15 | 41 |
| laboratory | 1.9 | 0.6 | 840 | 6 | 10 |
| preparation | 1.03 | 0.2 | 6838 | 76 | 11 |
| of | 0.38 | 0.7 | 1442 | 33 | 2 |
| ammonia | 1.62 | 0.3 | 9737 | 92 | 7 |
| gas | 1.01 | 0.8 | 3997 | 78 | 3 |
| 1.25 | 0.4 | 16 | 17 | 3 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| laboratory preparation of ammonia gas pdf | 1.47 | 1 | 7522 | 21 |
