Chapter 9, Problem 57P

I have a 2 mil plastic film that degrades after 22 days at 88C and at 61C takes 153 days. What is the failure at 47C in days.

If a 5 film plastic film degraded in 30 days at 35C and the same film degraded in 10 days at 55 C and 2 days at 65C what would the predicted life time be at 22C for the same film?

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I have a aqueous solution (175 ml) of iridium trichloride containing 8,750 ppm Iridium by ICP OES analysis. What is the percent concentration of Iridium trichloride in aquous solution and provide the concentration in moles per liter, percentage by weight.

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136 PRACTICAL SPECTROSCOPY Compound 78 is a high-boiling liquid (boiling point 189° C) that contains halogen, but will not react with alkoxides to yield an halogen. ether. The Mass, IR, and 'H NMR spectra, along with 13C NMR data, are given below. Elemental Analysis: C, 35.32; H, 2.47; contains BC Spectral Data: doublet, 137.4 ppm; doublet, 130.1 ppm; doublet, 127.4 ppm; singlet, 97.3 ppm Absorbance Mass Spectrum Intensity 77 77 204 M + 128 40 60 80 100 120 140 160 180 m/e 200 220 280 240 260 300 Infrared Spectrum Wave Number, cm -1 4000 3000 2500 2000 1500 1300 1200 1100 1000 900 800 700 3 6 7 8 9 10 12 13 15 Wavelength, microns 'H NMR wwwww 5 Structure: www ppm, & ©2000 Brooks/Cole Publishing Com-