This document contains questions about identifying substances based on their physical properties and asks the reader to look up the answers. It asks what liquids could be soluble in cyclohexane, the boiling point of toluene at 600 mm Hg, the density and melting point of osmium, the colors of CoCl2 and CoCl2 6H20, and the formula, molar mass, and color of potassium permanganate.

1. Identification of Substances by Physical Properties is soluble in cyclohexane. What liquids may
this be? 7. What is the boiling point of toluene at 600 mm Hg? -10"C-111"cto tmu Consult a
handbook or the internet for the following questions and specify the source used. 8. Osmium is
the densest element known. What are its density and melting point? meting point 9. What are the
colors of CoCl2 and CoCl2 6H20? 10. What are the formula, molar mass, and color of potassium
permanganate?
Solution
8) Melting Point = 3045 .
C
Density = 22.4 g/cm 3
9)
CoCl2 Blue.
CoCl2•6H2O Pink.
10) KMnO 4
Molar Mass 158.03 g/mol
Color= purplish-black glistening crystals.
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