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Unformatted text preview: 2 SO 4 solution. 7. In another solution, 12.8 g of an unknown covalent compound is dissolved in 951 mL of water and creates an osmotic pressure of 2.95 atm at 20.0 Celsius. What is the molar mass of the compound? R = 0.0821 L-atm/mol-K 8. What is the freezing point of 12.5 g of C 2 H 6 dissolved in 855 g of carbon tetrachloride? The melting point of carbon tetrachloride is -23 Celsius and the K f = 30. C-kg/mol. 12.6 Solid-state properties 9. List one example of each type of solid (atomic, molecular, metallic, ionic and covalent network). 10. Describe why a covalent network solid has a much higher melting point than molecular solids, though both are made of covalent compounds....
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This note was uploaded on 11/29/2011 for the course CHEM 1212 taught by Professor Dockery during the Fall '08 term at Kennesaw.
- Fall '08