The compound CoCl 2 2 H 2 O 4 NH 3 may be one of

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The compound CoCl2 · 2 H2O · 4 NH3 may be one of the hydrate isomers [CoCl(H2O)(NH3)4]Cl · H2O or [Co(H2O)2(NH3)4]Cl2. A 0.10 M aqueous solution of the compound is found to have a freezing point of –0.56 °C. Determine the correct formula of the compound. The freezing-point depression constant for water is 1.86 mol kg–1 °C, and for aqueous solutions, molarity and molality can be taken as approximately equal.

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General Chemistry Principles And Modern Applications

ISBN: 9780132931281

11th Edition

Authors: Ralph Petrucci, Jeffry Madura, F. Herring, Carey Bissonnette

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