- Arts & Culture 5937
- Business & Economics 689
- Computers 310
- Dictionaries & Encyclopedias 81
- Education & Science 75850
- Abstracts 252
- Astrology 4
- Astronomy 1
- Biology 8
- Chemistry 2221
- Coursework 15546
- Culture 9
- Diplomas 411
- Drawings 574
- Ecology 5
- Economy 83
- English 75
- Ethics, Aesthetics 3
- For Education Students 17607
- Foreign Languages 11
- Geography 2
- Geology 1
- History 89
- Maps & Atlases 5
- Mathematics 13855
- Musical Literature 2
- Pedagogics 19
- Philosophy 23
- Physics 14834
- 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 3058
- Fiction 696
- House, Family & Entertainment 107
- Law 132
- Website Promotion 71
38. To determine the concentration of bismuth in water
Refunds: 0
Uploaded: 31.07.2019
Content: 38.rar 15,4 kB
Product description
38. To determine the concentration of bismuth in water (mg / dm3), a sample of 10.00 ml was placed in a 50.00 ml volumetric flask, acidified with dilute nitric acid, a solution of bismuthol-1 (reagent on bismuth) was added, brought to the mark with water. The optical density of the resulting solution at 440 nm in a cuvette with l = 2.0 cm was found to be 0.150.
The optical density of the standard solution obtained by treating with 1.00 ml of 0.0001 M solution of Bi (NO3) 3 * 5H2O under similar conditions is 0.200.
Calculate the concentration (mg / dm3) in water, does it exceed the MPC (MAC (Bi) = 0.50 mg / dm3)?
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 |