EBooks
- Arts & Culture 6209
- Business & Economics 674
- Computers 316
- Dictionaries & Encyclopedias 74
- Education & Science 76835
- Abstracts 73
- Astrology 4
- Biology 8
- Chemistry 4010
- Coursework 15549
- Culture 8
- Diplomas 316
- Drawings 1595
- Ecology 5
- Economy 76
- English 80
- Ethics, Aesthetics 3
- For Education Students 17567
- 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 892
- Fiction 706
- House, Family & Entertainment 84
- Law 128
- Website Promotion 68
98. Solving a chemistry problem
Uploaded:
07.09.2022
Content: 2.1.rar 17,25 kB
Content: 2.1.rar 17,25 kB
Product description
2. To determine the iron (III) in the form of a sulfosalicilate, the hitch is placed in a measured flask with a capacity of 50 ml, the necessary reagents are added, the water is brought to the labels and the optical density is measured at 429 nm and the thickness of the layer of 3 cm. It turned out to be flat 0.62. The molar coefficient of light absorption is (6.10) 3. Calculate the weight of the hitch (d) of iron for analysis, if the mass fraction of iron in it is 0.005%.
Answer: 1.9 g
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 | |