- Arts & Culture 6143
- Business & Economics 674
- Computers 315
- Dictionaries & Encyclopedias 69
- Education & Science 77158
- Abstracts 74
- Astrology 4
- Astronomy 1
- Biology 8
- Chemistry 3273
- Coursework 15555
- Culture 8
- Diplomas 317
- Drawings 1421
- Ecology 5
- Economy 82
- English 79
- Ethics, Aesthetics 3
- For Education Students 17630
- Foreign Languages 11
- Geography 3
- Geology 1
- History 88
- Maps & Atlases 5
- Mathematics 13868
- Musical Literature 2
- Pedagogics 19
- Philosophy 23
- Physics 15104
- Political Science 5
- Practical Work 59
- Psychology 60
- Religion 4
- Russian and culture of speech 8
- School Textbooks 7
- Sociology 9
- Summaries, Cribs 87
- Test Answers 155
- Tests 8696
- Textbooks for Colleges and Universities 32
- Theses 7
- To Help Graduate Students 14
- To Help the Entrant 38
- Vetting 371
- Works 13
- Информатика 9
- Engineering 875
- Fiction 671
- House, Family & Entertainment 88
- Law 133
- Website Promotion 70
Solving a chemistry problem
Content: 4.zip 39,51 kB
Product description
4. To prepare the buffer system, V1 ml of a solution of a weak acid (weak base) with a molar concentration of the equivalent of c1 and V2 ml of a salt solution with a molar concentration of the equivalent of c2 were mixed. V3 ml of strong acid with concentration c3 was added to the buffer solution. Calculate:
a) pH of the buffer solution (initial pH value), dissociation constant of a weak acid, coefficients (or weak base) are given in Table 13.
b) pH of the buffer solution after adding a strong acid
c) buffer capacity of the buffer solution
d) buffer zone;
e) explain the mechanism of the buffering action when a strong acid is added to a buffer solution.
Table N13
N acid salt c1,
mol/l c2,
mol/l c3,
mol/l V1, ml V2, ml V3, ml K¬d
11-4 H2CO3 NaHCO3 0.1 0.1 0.15 5 5 2 4.69*10-7
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 | |