chm151LL lab 13

Jenna Nguyen CHM 151LL #13297 April 7, 2024 Lab 13: Intermolecular Forces; Liquids and Solids Purpose: The main focus of this lab was to use the materials in the lab kit to describe and understand the different types of intermolecular forces and their strengths within different types of liquids. Additionally, determining what type of intermolecular force certain chemical bonds have and if they were polar or nonpolar. Materials: The materials are listed below: 1. Rubber band 2. Facial tissue 3. Distilled water 4. Thermometer 5. Acetone 6. 70% isopropyl alcohol 7. Non acetone nail polish remover Procedures: The procedures are listed below 1. Set out thermometer for a couple minutes to get the temperature of the room 2. Grab tissue and wrap it around the bulb of the thermometer 3. Use the rubber band to secure the tissue around the bulb 4. Place the thermometer with the wrapped tissue in distilled water first, fulling submerging it 5. Take it out of the distilled water and do not let it touch the sides of the cup or anything else 6. Record the lowest temperature on the thermometer 7. Dispose of tissue 8. Repeat steps 2-6 for a. Acetone b. Isopropyl alcohol c. Non Acetone nail polish remover Data: Room Temperature during experiment: __13.2C______ Substance Lowest temperature reached with liquid on tissue around bulb of thermometer Distilled water 8C

Jenna Nguyen CHM 151LL #13297 April 7, 2024 70% Isopropyl Alcohol 1C Acetone Nail Polish Remover -9C Non-acetone Nail Polish Remover 7C Data table #2 Tested Substances Formula Structural Formula Molar Mass Polar or Nonpolar? Dominant Intermolecular Force Distilled Water H 2 0 (opens in a new tab) 18.02 g/mol polar Hydrogen bonding 70% Isopropyl alcohol C 3 H 7 OH (opens in a new tab) 60.09 g/mol polar Hydrogen bonding Acetone Nail Polish Remover C 3 H 6 O (opens in a new tab) 58.08 g/mol polar Dipole dipole