- Arts & Culture 6209
- Business & Economics 674
- Computers 316
- Dictionaries & Encyclopedias 74
- Education & Science 76877
- 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 17573
- 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: 9x.docx 19,74 kB
Product description
9. 1.00 ml of the test solution, zinc salt containing 0.238 mg of the 65Zn isotope, and different volumes (from 0.20 to 1.60 ml) of 0.0287 N K4Fe(CN)6 (feq=1/3) were added to the beaker for radiometric titration. After adding each portion of the titrant and mixing, a sample of the filtrate was taken, the activity was measured, and the sample was returned to the beaker. The obtained results are presented in the table:
V(K4Fe(CN)6) 0.20 0.40 0.60 0.80 1.0 1.20 1.40 1.60
A, cpm for variant 1 950 820 680 570 420 280 150 0
A, cpm for variant 2 1030 910 800 680 550 440 330 200
A, cpm for variant 2 930 720 520 310 100 0 0 0
Plot a titration curve and calculate the zinc concentration in the solution (mg/ml), if the activity of the solution before the titration was 1150 cpm.
Solution for variant 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 | |