4. A student had a sample of CaCl2 • nH20. He heated the sample until the mass did not change. From this data, calculate (a). the percentage of CaCl2 in the original sample and (b). the formula of the hydrate Mass of crucible + cover = 28.39 g OM Mass of crucible + cover + sample 30.41 g Mass of crucible + cover + residue = 29.75 %3D %3D
4. A student had a sample of CaCl2 • nH20. He heated the sample until the mass did not change. From this data, calculate (a). the percentage of CaCl2 in the original sample and (b). the formula of the hydrate Mass of crucible + cover = 28.39 g OM Mass of crucible + cover + sample 30.41 g Mass of crucible + cover + residue = 29.75 %3D %3D
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter3: Equation, The Mole, And Chemical Formulas
Section: Chapter Questions
Problem 3.85QE: A chemist prepared a compound that she thought had the formula FeI3. When the compound was analyzed,...
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