In the definition for Crystal Systems, the difference between Triclinic and Monoclinic, or Monoclinic and Orthorhombic, is due to: Restraining the axial cell lengths to be equal to each other. Restraining the cell angles to be equal to 90 degrees. The impossibility of placing regular pentagons into a repeating 3-dimensional lattice. The addition of independent symmetry elements. The recognition that a cell need not be primitive, but can be A, B, C, I or F centered.

In the definition for Crystal Systems, the difference between Triclinic and Monoclinic, or Monoclinic and Orthorhombic, is due to: Restraining the axial cell lengths to be equal to each other. Restraining the cell angles to be equal to 90 degrees. The impossibility of placing regular pentagons into a repeating 3-dimensional lattice. The addition of independent symmetry elements. The recognition that a cell need not be primitive, but can be A, B, C, I or F centered.

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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0.1890 grams of an unknown organic acid containing 2 carboxylic groups was dissolved in about 50 mL of water in a 250 mL Erlenmeyer flask and titrated against 0.1000 M NaOH solution using bromothymol blue indicator. 34.62 mL of titrant was used to achieve end point. Calculate the molar mass of the unknown. Write answer with two decimal places only. No units please.
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