Key Takeaways. Alcohols have higher boiling points than do ethers and alkanes of similar molar masses because the OH group allows alcohol molecules to engage in hydrogen bonding. Alcohols of four or fewer carbon atoms are soluble in water because the alcohol molecules engage in hydrogen bonding with water molecules; comparable alkane molecules The systematic name for isopropyl alcohol, for example, is 2-propanol. CH 3 OH: Methanol : CH 3 CH 2 OH: Ethanol: CH 3 CHOHCH 3: 2-Propanol . As a result, alcohols have boiling points that are much higher than alkanes with similar molecular weights. The boiling point of ethanol, for example, is 78.5ºC, whereas propane, with about the same Formula: C 4 H 10 O 2. Molecular weight: 90.1210. IUPAC Standard InChI: InChI=1S/C4H10O2/c1-4 (5)3-6-2/h4-5H,3H2,1-2H3. Copy Sheet of paper on top of another sheet. IUPAC Standard InChIKey: ARXJGSRGQADJSQ-UHFFFAOYSA-N. Copy Sheet of paper on top of another sheet. CAS Registry Number: 107-98-2. Chemical structure: Question: The normal boiling point of liquid propanol is 371 K. Assuming that its molar heat of vaporization is constant at 43.9. The normal boiling point of liquid propanol is 371 K. Assuming that its molar heat of vaporization is constant at 43.9 kJ/mol, the boiling point of C3H7OH when the external pressure is 0.647 atm is K. B. II only. 14. The normal boiling point of 2-propanol, (CH3)2CHOH, is 83 C, while that of acetone (CH3)C=0 is 56 C. What is the principle reason for the greater boiling point of 2-propanol? 2-propanol experiences stronger hydrogen bonding than acetone. 15. Consider the four gases CO2, N2, CCL4, and He. Molweight, melting and boiling point, density, pKa-values, as well as number of carbon and hydrogen atoms in molecules are given for 150 different alcohols and acids. How can you use this information to determine the boiling point? 3. What was the refractive index of your isopropanol? What is the actual refractive index of isopropanol (from a reference source)? Useful information about isopropanol: Names: isopropanol, isopropyl alcohol, 2-propanol Molar mass: 60.11 g/mol Boiling Point: 82.4 o C 2-Propanol. View Price and Availability. Supelco. 1.02781. 2-Propanol. View Price and Availability. Sigma-Aldrich. W292907. Isopropyl alcohol. View Price and Availability. Sigma-Aldrich. 34863. 2-Propanol. View Price and Availability. Questions. Be the first to ask a question . Reviews 2-Propanol, 2-methy l-[ACD/Index Name] More Validated by Experts, Validated by Users, Non-Validated, Removed by Users. 22RR53U71W [DBID] CO1YOV1KFI [DBID Experimental Boiling Point: 83 °C Alfa Aesar: 180 °F (82.2222 °C) NIOSH EO1925000: The boiling point increases as the moleculer mass of the alcohol increases. Further, among isomeric alcohols, 1 0 alcohols have higher boiling points than 2 0 alcohols. Therefore the b.p.t increases in the order: propan -1-ol < butan-2-ol < butan-1-ol < pentan-1-ol. RuSt.