01. Aristotle conceived the idea of indivisible units called atoms. Democritus rejected the idea of atomism. 02. Thomson pictured the atom as positively-charged sphere with electrons loosely embedded on the surface. Rutherford pictured an atom having a small massive central positive core. 03. Gamma particle is the most penetrating radioactive particle. Reta partiele pesitively obarged

01. Aristotle conceived the idea of indivisible units called atoms. Democritus rejected the idea of atomism. 02. Thomson pictured the atom as positively-charged sphere with electrons loosely embedded on the surface. Rutherford pictured an atom having a small massive central positive core. 03. Gamma particle is the most penetrating radioactive particle. Reta partiele pesitively obarged

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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Application Questions: Answer the following questions. Show all work for calculations and include units and the correct number of significant figures. 1. A solution of cobalt (III) chloride was analyzed using a UV/Vis spectrometer and produced the spectra shown in Fig. 4. What is the best wavelength to use for analyzing the samples? Best wavelength to analyze sample: Absorbance 0.600 0.500 0.400 0.300 0.200 0.100 0.000 375 400 450 425 475 500 525 550 Wavelength (nm) Molarity of FD&C #2 0.000 0.115 0.225 0.350 575 Figure 4. UV/Vis spectra of a cobalt (III) chloride solution for determination of the best wavelength for analysis. 8 600 625 2. Create a graph in Excel and add a linear trendline using the data given below. Calculate the molarity of a solution (to 3 significant digits) with an absorbance of 0.576 using the trendline equation from this graph. Show your work in the box below. DO NOT ATTACH THE FIGURE. Abs 0.002 0.187 0.442 0.699 650 675
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What is could be the calculated lambda max of this compound? 315 323 270 285
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