. You start with a 3.865 g sample of a salt which has the formula CoxCly · zH₂O, where x, y, and z are unknown. After gently heating the salt (as you did in lab with a similar compound), the mass decreased to 2.108 g. The remaining salt was then dissolved in water to form a clear solution. After adding an excess of aluminum metal, the solution fizzed, and a new blueish precipitate formed. After collecting and drying the blue precipitate, its mass was measured to be 0.957 g. Determine the empirical formula of the original compound.

. You start with a 3.865 g sample of a salt which has the formula CoxCly · zH₂O, where x, y, and z are unknown. After gently heating the salt (as you did in lab with a similar compound), the mass decreased to 2.108 g. The remaining salt was then dissolved in water to form a clear solution. After adding an excess of aluminum metal, the solution fizzed, and a new blueish precipitate formed. After collecting and drying the blue precipitate, its mass was measured to be 0.957 g. Determine the empirical formula of the original compound.

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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