- Arts & Culture 5943
- Business & Economics 689
- Computers 319
- Dictionaries & Encyclopedias 81
- Education & Science 76068
- Abstracts 252
- Astrology 4
- Astronomy 1
- Biology 8
- Chemistry 2330
- Coursework 15587
- Culture 9
- Diplomas 411
- Drawings 574
- Ecology 6
- Economy 83
- English 75
- Ethics, Aesthetics 3
- For Education Students 17617
- Foreign Languages 11
- Geography 3
- Geology 1
- History 89
- Maps & Atlases 5
- Mathematics 13871
- Musical Literature 2
- Pedagogics 19
- Philosophy 23
- Physics 14874
- 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 150
- Tests 9243
- 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 3062
- Fiction 696
- House, Family & Entertainment 107
- Law 132
- Website Promotion 71
E115. When constructing the calibration graph for the d
Uploaded: 02.02.2021
Content: 115.rar 23,51 kB
Product description
E115. When constructing the calibration graph for the determination of nickel, a 10-4 M solution of nickel salt was used, an aliquot of which was diluted with ammonia-ammonia buffer to 25 ml and polygraphed, and the following data were obtained:
V, ml 1 2 3 4 5 6
h, mm 9 16 26.5 35 41 54
An alloy mass of 0.25 g containing nickel was dissolved in 50 ml of an acid mixture, 5 ml of the resulting solution was taken and diluted with the same buffer solution to 25 ml.
By polarography, a wave height of 22.7 mm was obtained.
What is the mass fraction of nickel in the alloy?
Additional information
If your file does not open, install the RAR program. 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 |