6. The following light scattering data give values of the quantity 107 Kc/Re for solutions ofcellulose nitrate dissolved is acetone:Concentration/gdm-³0.880.640.4345°69.866.062.8Scattering Angle(in relation to transmitted beam)32°49.045.542.117°30'33.029.425.9Make appropriate extrapolations and calculate an average molecular mass for the cellulosenitrate.

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Answered: 6. The following light scattering data…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Given the following size frequency for a dust: Size Interval (um) 7-17.5 17.5-21 21-25 25-28 28-30 30-33 33-36 36-41 41-49 49-70 % by Number 10 10 10 10 10 10 10 10 10 10 a. Plot the cumulative frequency distributions (in %) of the number, surface area, and mass on linear graph paper assuming all particles are spheres with Pp 1.6 g cm ³. = b. Is this a log-normally distributed dust?
Which of the following are the three main factors affecting the rate of movement of a compound on a TLC plate? 1) Site-compound affinity 2) Site-solvent affinity 3) solvent-compound affinity 4) solvent-solvent affinity 5) compound-compound affinity
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In order to improve the peptide separation by using a HPLC system, trifluoroacetic acid acts as mobile-phase modifier was added during the preparation of mobile phase. The preparation was performed by a postgraduate student as following:“2.851 g trifluoroacetic acid (MW: 114.02 g/mol) was made up to 500 cm3 in a graduated flask. To this solution, 50 cm3 of ethanol was added, and after mixing the mobile phase was placed in the solvent reservoir and pumping was commenced at 1.5 cm3 min-1.”Based on the given preparation procedure, identify THREE mistakes that were made.
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Using the Hard-Sphere model of cross section, a) Calculate the total cross section of proton-proton collision by looking up the radius of a proton. b) The cross section for pp collision at the LHC with √s = 14TeV is ~0.1 barn. Compare this to what you found in part a and hypothesize what could cause the difference between them.

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