- 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 893
- Fiction 706
- House, Family & Entertainment 84
- Law 128
- Website Promotion 68
6. Solution to Chemistry Problem
Content: 8.docx 20,06 kB
Product description
8. A sample of bronze weighing m g was dissolved in nitric acid, the solution was transferred to a 25.00 ml measuring flask, neutralized with ammonia and brought up to the mark with water. To determine beryllium, 5.00 ml of the resulting solution was taken, EDTA was added to mask interfering elements, acetate buffer and titrated with a 0.1000 M (K = 0.913) solution of disubstituted ammonium phosphate labeled with radioactive 32P. The titration results are given below:
V(Na2HPO4), ml 1.00 2.00 3.00 4.00 5.00 6.00 7.00
A, cpm at m=0.8120 g 60 60 60 60 60 840 1600
A, cpm at m=0.7981 g 50 50 50 50 300 1200 -
A, cpm at m=0.9002 g 60 60 60 60 180 500 800
Determine the mass fraction (%) of beryllium in bronze.
Solution for option 1
Additional information
If you cannot open the file or have any problems, do not rush to leave a negative review! Contact me and I will quickly help you solve the problem. After purchasing, please leave a positive review of the product :)
Feedback
0| Period | |||
| 1 month | 3 months | 12 months | |
| 0 | 0 | 0 | |
| 0 | 0 | 0 | |