- Arts & Culture 6852
- Business & Economics 669
- Computers 318
- Dictionaries & Encyclopedias 81
- Education & Science 77784
- Abstracts 73
- Astrology 5
- Biology 8
- Chemistry 4873
- Coursework 15612
- Culture 8
- Diplomas 325
- Drawings 1597
- Ecology 5
- Economy 81
- English 81
- Ethics, Aesthetics 3
- For Education Students 17454
- Foreign Languages 11
- Geography 3
- Geology 1
- History 37
- Maps & Atlases 3
- Mathematics 13096
- Musical Literature 2
- Pedagogics 21
- Philosophy 22
- Physics 15123
- Political Science 5
- Practical Work 59
- Psychology 65
- Religion 4
- Russian and culture of speech 8
- School Textbooks 7
- Sociology 9
- Summaries, Cribs 88
- Test Answers 164
- Tests 8411
- Textbooks for Colleges and Universities 32
- Theses 7
- To Help Graduate Students 14
- To Help the Entrant 38
- Vetting 408
- Works 13
- Информатика 8
- Engineering 717
- Fiction 710
- House, Family & Entertainment 86
- Law 132
- Website Promotion 72
82. Solving a chemistry problem
Content: 332.rar 49,63 kB
Product description
332. The bean mosaic virus was investigated by centrifugation in an aqueous medium at 20 °C and the centrifuge rotor speed of 12590 min-1, and the following data were obtained on the distance of the sedimentation boundary from the axis of rotation of the rotor depending on the sedimentation time:
t, min 16 32 48 64 80 96 112
x*, cm 6.22 6.32 6.42 6.52 6.62 6.72 6.82
x* is the distance of the sedimentation boundary from the axis of rotation.
Based on these data, determine the sedimentation coefficient and the molar mass of the virus, if it is known that the diffusion coefficient is 0.51 * 10-11 m2 / s and the ascent coefficient (1 - Vsp * ρ0) is 0.268
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 | |