- Arts & Culture 5954
- Business & Economics 689
- Computers 317
- Dictionaries & Encyclopedias 81
- Education & Science 76487
- Abstracts 252
- Astrology 4
- Astronomy 1
- Biology 8
- Chemistry 2513
- Coursework 15782
- Culture 9
- Diplomas 411
- Drawings 571
- Ecology 6
- Economy 82
- English 78
- Ethics, Aesthetics 3
- For Education Students 17626
- Foreign Languages 11
- Geography 3
- Geology 1
- History 89
- Maps & Atlases 5
- Mathematics 13871
- Musical Literature 2
- Pedagogics 19
- Philosophy 23
- Physics 14904
- Political Science 5
- Practical Work 101
- Psychology 60
- Religion 4
- Russian and culture of speech 8
- School Textbooks 7
- Sexology 42
- Sociology 9
- Summaries, Cribs 87
- Test Answers 151
- Tests 9245
- Textbooks for Colleges and Universities 32
- Theses 24
- To Help Graduate Students 14
- To Help the Entrant 37
- Vetting 364
- Works 13
- Информатика 10
- Engineering 3060
- Fiction 696
- House, Family & Entertainment 107
- Law 132
- Website Promotion 71
В3.22-1 For the preparation of standard solutions of ti
Refunds: 0
Uploaded: 01.05.2019
Content: В3.22-1.doc 253,5 kB
Product description
For the preparation of standard solutions of titanium (IV) and vanadium (V), the sample of steel that does not contain vanadium and titanium was dissolved in nitric acid. In six volumetric flasks with a capacity of 50.00 ml, the same aliquots of the resulting solution were placed, 0.50, 1.00, 1.50 ml of a solution containing 0.20 mg / ml titanium (IV) or vanadium (V), hydrogen peroxide was added and labeled. The optical densities of the titanium (IV) complexes at 400 nm and vanadium (V) at 400 nm and 619 nm relative to the reference solution containing all the components were measured. We obtained the following data for constructing a calibration graph:
Additional information
The task from the textbook on Analytical Chemistry, vol.2, Vasiliev
Feedback
0Period | |||
1 month | 3 months | 12 months | |
0 | 0 | 0 | |
0 | 0 | 0 |