- Arts & Culture 6213
- 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 129
- Website Promotion 68
128. Solving a chemistry problem
Refunds: 0
Uploaded: 09.07.2022
Content: на поверхности.rar 23,13 kB
Product description
The surfactant C12H25(OC2H4)3OSO3Na is adsorbed on the surface of TiO2 pigment particles. Calculate the value of the electrokinetic potential of unmodified and modified particles if the displacement of the sol boundary during the time t=2*103 s during electrophoresis was
Surfactant concentration c*103, kmol/m3 0 0.2
Boundary offset a*102,m 2.5 0.4
Moving the sol to the cathode to the anode
The distance between the electrodes is 25*10-2 m, the voltage applied to the electrodes is 120 V. The dielectric constant of the medium is ε=81; electrical constant ε0=8.85*10-12 f/m; medium viscosity 1*10-3 Ns/m2. What is the observed phenomenon called?
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
1| Period | |||
| 1 month | 3 months | 12 months | |
| 1 | 1 | 1 | |
| 0 | 0 | 0 | |