EBooks
- Arts & Culture 6212
- Business & Economics 674
- Computers 316
- Dictionaries & Encyclopedias 74
- Education & Science 76877
- Abstracts 73
- Astrology 4
- Biology 8
- Chemistry 4046
- Coursework 15549
- Culture 8
- Diplomas 316
- Drawings 1595
- Ecology 5
- Economy 76
- English 80
- Ethics, Aesthetics 3
- For Education Students 17573
- Foreign Languages 11
- Geography 3
- Geology 1
- History 88
- Maps & Atlases 5
- Mathematics 12624
- Musical Literature 2
- Pedagogics 19
- Philosophy 22
- Physics 15120
- Political Science 5
- Practical Work 59
- Psychology 63
- Religion 4
- Russian and culture of speech 8
- School Textbooks 7
- Sociology 9
- Summaries, Cribs 87
- Test Answers 160
- Tests 8747
- Textbooks for Colleges and Universities 32
- Theses 7
- To Help Graduate Students 14
- To Help the Entrant 38
- Vetting 385
- Works 13
- Информатика 8
- Engineering 893
- Fiction 706
- House, Family & Entertainment 84
- Law 128
- Website Promotion 68
2. Solving a chemistry problem
Sold: 1
Refunds: 0
Uploaded: 27.08.2023
Content: 15.zip 34,8 kB
Refunds: 0
Uploaded: 27.08.2023
Content: 15.zip 34,8 kB
Product description
15. From a sample of steel 0.2162 g, after appropriate processing, 1000 ml of a colored solution of oxidized nickel dimethylglyoximine were obtained. The relative optical density of this solution, measured with respect to a reference solution containing 30 mg/l nickel, was found to be 0.66. Optical density of four standard solutions containing 9.0; 15.0; 18.0 and 24.0 mg of nickel in 1000 ml, found to be equal to 0.22, respectively; 0.48; 0.60; 0.87. Build a calibration graph in the coordinates A-C (mg/ml) and determine the percentage of nickel in the steel.
Additional information
If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.
Feedback
0| Period | |||
| 1 month | 3 months | 12 months | |
| 0 | 0 | 0 | |
| 0 | 0 | 0 | |