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U-12
REPORT: EXPERIMENT U - BONDING AND
CHEMICAL PROPERTIES
Name ___________________________________
Laboratory Section _________Date ___________
Laboratory Instructor ______________________
Part I: Solubility and Extent of Ionization
1.
a)
From your observations, is the solubility of NaCl greater in water or in dichloromethane? Explain
your answer using intermolecular forces with the solvent. (0.4 marks)
b)
From your observations, is the solubility of the molecular halogens greater in water or in
dichloromethane? Explain your answer using intermolecular forces with the solvent. (0.4 marks)
2.
a)
Explain the difference in light intensity between the probe in the NaCl solution and in the sucrose
solution in terms of bonding in the compounds, and interaction with the solvent. (0.4 marks)
b)
Since sucrose is a non-electrolyte, why does it dissolve in water? (0.4 marks)
c)
Explain whether you would expect CH3OH to be soluble in water. (0.3 marks)
