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Explain the halogens form compounds among themselves, called interhalogens and their formulas are XX', XX'3 and XX'5, where X is the heavier halogen atom.
a) Forecast their structures and bond angles
b) Define which of them are polar?
c) Explain why is the lighter halogen atom not the central atom in such molecules?
A solution of ethanol (C2H5OH) in water is prepared by dissolving 67.5 mL of ethanol (density = 0.79 g/cm3) in enough water to make 250.0 mL of solution. What is the molarity of the ethanol in this solution?
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If an aqueous solution of Co(NO3)2 has a molar absorptivity of 5.10 L/mol.cm at 505 nm. What will be the absorbance of a 0.075 M solution
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