- Arts & Culture 6209
- Business & Economics 674
- Computers 316
- Dictionaries & Encyclopedias 74
- Education & Science 76871
- 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 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
20. Solving a chemistry problem
Content: 68.rar 24,5 kB
Product description
68. The most effective way to neutralize contaminated wastewater from chemical enterprises is to treat them with substances that precipitate harmful impurities in the form of sparingly soluble compounds. At the same time, it is important that the precipitant be in excess, since otherwise, obviously, the required degree of wastewater treatment will not be achieved. The enterprise supplies wastewater containing 3.31 kg of lead(II) nitrate to the water treatment site. Lead (II) cations are precipitated by adding 1.27 kg of sodium carbonate to the solution. Determine which reagent and in what quantity is in excess. Calculate also the mass of precipitated lead (II) carbonate.
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 | |