- Arts & Culture 6152
- Business & Economics 674
- Computers 315
- Dictionaries & Encyclopedias 69
- Education & Science 77355
- Abstracts 74
- Astrology 4
- Astronomy 1
- Biology 8
- Chemistry 3309
- Coursework 15556
- Culture 8
- Diplomas 317
- Drawings 1557
- Ecology 5
- Economy 81
- English 80
- Ethics, Aesthetics 3
- For Education Students 17641
- Foreign Languages 11
- Geography 3
- Geology 1
- History 88
- Maps & Atlases 5
- Mathematics 13868
- Musical Literature 2
- Pedagogics 19
- Philosophy 23
- Physics 15113
- Political Science 5
- Practical Work 59
- Psychology 59
- Religion 4
- Russian and culture of speech 8
- School Textbooks 7
- Sociology 9
- Summaries, Cribs 87
- Test Answers 155
- Tests 8696
- Textbooks for Colleges and Universities 32
- Theses 7
- To Help Graduate Students 14
- To Help the Entrant 38
- Vetting 377
- Works 13
- Информатика 8
- Engineering 875
- Fiction 672
- House, Family & Entertainment 85
- Law 133
- Website Promotion 70
71. Solving a chemistry problem
Content: 4.rar 35,25 kB
Product description
4. A sample of an organic compound weighing 2.354 g was subjected to pyrolysis under conditions when the sulfur in the substance turns into hydrogen sulfide. The gaseous decomposition products after the chromatographic separation of cyan were passed into a conductometric cell containing a solution of mercury nitrate. As a result, the resistance of the solution in the cell increased to ΔRх. Standard samples were subjected to the same transformations, ΔR values were measured and the following data were obtained:
mS in the sample, mg 0.240 0.260 0.280 0.300
ΔR•10-6, Ohm 450 480 510 540
Build a calibration graph and calculate the mass fraction (%) of sulfur in an organic compound if ΔRх= 494•106Ω.
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
0Period | |||
1 month | 3 months | 12 months | |
0 | 0 | 0 | |
0 | 0 | 0 |