The following data were obtained for the adsorption of a certain material (ORA) on activated carbon at 25 °C. Activated carbon mass (g) 1.0119 [ORA) initial (M) [ORA] at equilibrium (M) 0.0044 Sample number 1 0.0096 0.0207 0.0446 1.0186 0.0289 3 1.0360 0.0578 4 1.0129 0.0867 0.0721 1.0393 0.1156 0.1002 0.1270 0.1742 5 6. 1.0312 0.1445 7 1.0198 0.1926 1.0270 0.2407 0.2227 1.0252 0.2889 0.1108 1. Try fitting these data using Langmuir Isotherm and obtain K and monolayer of ORA molecules per one gram 2. Try fitting these data using Freundlich Isotherm and obtain its constants 3. Which isotherm describe best the adsorption of ORA on activated carbon and why? 4. If a monolayer of N2 molecules is 0.03075 mole per one gram of activated carbon, and the surface area on one N2 molecules is 0.162 nm, determine: a. surface area per one gram of activated carbon b. surface area of one ORA molecule

The following data were obtained for the adsorption of a certain material (ORA) on activated carbon at 25 °C. Activated carbon mass (g) 1.0119 [ORA) initial (M) [ORA] at equilibrium (M) 0.0044 Sample number 1 0.0096 0.0207 0.0446 1.0186 0.0289 3 1.0360 0.0578 4 1.0129 0.0867 0.0721 1.0393 0.1156 0.1002 0.1270 0.1742 5 6. 1.0312 0.1445 7 1.0198 0.1926 1.0270 0.2407 0.2227 1.0252 0.2889 0.1108 1. Try fitting these data using Langmuir Isotherm and obtain K and monolayer of ORA molecules per one gram 2. Try fitting these data using Freundlich Isotherm and obtain its constants 3. Which isotherm describe best the adsorption of ORA on activated carbon and why? 4. If a monolayer of N2 molecules is 0.03075 mole per one gram of activated carbon, and the surface area on one N2 molecules is 0.162 nm, determine: a. surface area per one gram of activated carbon b. surface area of one ORA molecule

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter8: Sampling, Standardization, And Calibration

Section: Chapter Questions

Problem 8.19QAP

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