Boiling Points of Alcohols Observation table: Boiling Points Observations of Substances Chemical NameCarbonsBoiling point (oC)Water (H2O(l))0100Methane (CH3OH(l))164Ethane (C2H5OH(l))277Isopropyl (C3H7OH(l))380Pre Lab: Lowest Boiling Point1.CH3OH: One hydrogen bonding, LDF, dipole-dipole -Least amount of covalent bonds, LDF’s 2.C2H5OH: One hydrogen bonding, LDF, dipole-dipole -Second most covalent bonds, LDF’s 3.C3H7OH: One hydrogen bondings, LDF, dipole-dipole-Most amount of covalent bonds, LDF’s 4.H2O: Two hydrogen bondings, LDF, dipole-dipole Highest Boiling PointVariables:Manipulated: Temperature Controlled: Boiling points of substancesResponding: Amount, timing, identical test tubes and room temperature.Reasoning: Hydrogen bonds are the strongest intermolecular forces, therefore, any compound with the mosthydrogen bonds will have the highest boiling point. In this case, water has the highest boiling point because it has the highest amount of hydrogen bonds.
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