Modern Analytical Cheymistry - Chapter 5 ppt

... Replicates added (µA) 0.000 2 .53 2 .50 2.70 2.63 2.70 2.80 2 .52 0.387 8.42 7.96 8 .54 8.18 7.70 8.34 7.98 1. 851 29. 65 28.70 29. 05 28.30 29.20 29. 95 28. 95 5.734 84.8 85. 6 86.0 85. 2 84.2 86.4 87.8 Determine ... x b i i i 0 2 2 2 0 40 35 0 55 0 6 0 55 0 1 50 0 0 292= ∑ ∑∑ == r 22 2 –( ) (. )(. ) ()(. )–(. ) . s ns nx x b i i 1 r 2 2 = ∑∑ == –( ) ()(. ) ()(. )–(. ) . 2 2 2 6 0...

Ngày tải lên: 13/08/2014, 02:20

... log [] . log [] 0 059 16 1 0 059 16 2 1 EE c Ag Ag + + Ag =− ° / . log [] 0 059 16 1 EE a Zn Zn 2+ 2+ Zn =− ° / . log [] 0 059 16 2 1 EE n Q=− ° 0 059 16. log EE RT nF Q=− ° ln 468 Modern Analytical ... C S, 2 0 00873 0 059 16 50 00 1 00 0 2 951 0 9804 9 804 10 2 4 (. ) . log .(. . log . . =+ ×       =+ ×       − − mL 51 .00 mL mL) (5. 00 10 M) (51 .00 mL) X X C...

Ngày tải lên: 13/08/2014, 02:20

... R-PDAH 2 þPADH 2þ 2 þ2Cl À , ,R-HCO 3 þNaHCO 3 R-PDAH 2 þPDAH 2þ 2 þ2C1 À Sample R-HCO 3 þMA! R-H þMA!R-H þMA R-PDAH 2 þMA þ2C1 À ! R-A þMHCO 3 R-M þPDAH 2þ 2 þ2C1 À þA R-A þNaHCO 3 ! R-M þHCl!R-H þMC1 R-M þPDAH 2þ 2 þ2C1 À ! R-HCO 3 þNaA R-PDAH 2 þMC1 2 Suppressor ... R-PDAH 2 þMC1 2 Suppressor column Eluent R-H þMHCO 3 ! R-OH þHCl!R-Cl þH 2 O 2R-OH þPDAH 2þ 2 þ2C1 À ! R-M þH 2 CO 3 2R-C1 þP...

Ngày tải lên: 11/08/2014, 12:21

... Optimize Resolution 55 9 12D Gas Chromatography 56 3 12D.1 Mobile Phase 56 3 12D.2 Chromatographic Columns 56 4 12D.3 Stationary Phases 56 5 12D.4 Sample Introduction 56 7 12D .5 Temperature Control 56 8 12D.6 ... Techniques 51 5 11D.6 Quantitative Applications 52 0 11D.7 Characterization Applications 52 7 11D.8 Evaluation 53 1 11E Key Terms 53 2 11F Summary 53 2 11G Suggested E...

Ngày tải lên: 13/08/2014, 02:20

... figures. a. 4 .59 1 + 0.2309 + 67.1 = b. 313 – 273. 15 = c. 712 × 8.6 = d. 1.43/0.026 = e. (8.314 × 298)/964 85 = f. log(6 .53 × 10 5 ) = g. 10 –7.14 = h. (6 .51 × 10 5 ) (8.14 × 10 –9 ) = 5. A 12.1374-g sample ... (b) balance An apparatus used to measure mass. 1400-CH02 9/8/99 3:48 PM Page 25 34 Modern Analytical Chemistry 12. A 250 .0-mL aqueous solution contains 45. 1 µg of a p...

Ngày tải lên: 13/08/2014, 02:20

... the x-axis and the y-axis use a logarithmic scale. The analyte’s concentration and the amount of C CK I AAI ≤== 0 0 050 0 0 050 0 15 0 033 . . , K S S AI I A , .=== 6 40 0 15 42 Modern Analytical ... Chem. 1993, 65, 781A–787A. 9. Valcárcel, M.; Ríos, A. Analyst, 19 95, 120, 2291–2297. 10. (a) Amore, F. Anal. Chem. 1979, 51 , 1105A–1110A; (b) Taylor, J. K. Anal. Chem. 1981, 53 , 1...

Ngày tải lên: 13/08/2014, 02:20

... (%w/w) 0.200 0.100 1.00 0.101 50 .5 0.400 0.200 1.00 0.202 50 .5 0.600 0.300 1.00 0.303 50 .5 0.800 0.400 1.00 0.404 50 .5 1.000 0 .50 0 1.00 0 .50 5 50 .5 proportional determinate error A determinate error ... L.; Winefordner, J. D. Anal. Chem. 1983, 55 , 712A–724A. 4 M REFERENCES 1400-CH04 9/8/99 3 :55 PM Page 102 Chapter 4 Evaluating Analytical Data 57 s r == 0 051 3 117...

Ngày tải lên: 13/08/2014, 02:20

... pyridine, C 5 H 5 N (b) K b for dihydrogen phosphate, H 2 PO 4 – SOLUTION () . . . () . . . , , – – – , , – – – – a b bC H N w aC H NH bH PO w aHPO K K K K K K 55 55 24 34 100 10 59 0 10 169 ... are [Pb 2+ ] = 0.10 + x ≈ 0.10 M [I – ]=2x = 1.6 × 10 –6 M Chapter 6 Equilibrium Chemistry 157 1400-CH06 9/9/99 7:40 AM Page 157 150 Modern Analytical Chemistry ladder diagram A vi...

Ngày tải lên: 13/08/2014, 02:20

... (h) pH 0 .5 4.4 9.0 5. 7 1.0 4.8 9 .5 5 .5 1 .5 5.2 10.0 6 .5 2.0 5. 2 10 .5 6.0 2 .5 5.6 11.0 5. 8 3.0 5. 4 11 .5 6.0 3 .5 5.4 12.0 5. 6 4.0 4.4 12 .5 5.6 4 .5 4.8 13.0 5. 4 5. 0 4.8 13 .5 4.9 5. 5 4.2 14.0 5. 2 6.0 ... 0.0 85 0.10 15 1.078 0.1012 0.413 0.1010 1.248 0.1060 0. 654 0.0997 0 .50 7 0. 25 0. 251 5 0.847 0.24 65 0 .59 8 0.2770 0.431 0.2460 0.842 0.24 85...

Ngày tải lên: 13/08/2014, 02:20

... (g) (g) (g) 0–2 1 .59 0 43.21 52 .10 49.49 2–4 1.7 45 40.62 48.83 46.00 4–6 1.619 41.23 52 .86 47.84 6–8 1.611 42.10 50 .59 47.13 8–10 1. 658 43.62 51 .88 47 .53 10–12 1.628 43.24 49. 45 45. 31 12–14 1.633 ... OH O – NH 4 + NO N H 5 C 6 C 6 H 5 N OH OH OH NO Na[B(C 6 H 5 ) 4 ] NC 6 H 5 N + N C 6 H 5 C 6 H 5 – N 1400-CH08 9/9/99 2:18 PM Page 249 Chapter 8 Gravimetric Metho...

Ngày tải lên: 13/08/2014, 02:20