CHEM 121 Lab 2 Density SPRING 2024 Portage learning

Experiment #: 2 Title: Density Purpose: To measure the density of some liquids and solids which includes some materials of biological interest. Procedure: 1. Dispense 10mL of water using a 10mL pipet into beaker on zeroed scale 2. Use scale to measure mass of water 3. Calculate density 4. Add 5mL of water to beaker using a 5mL pipet 5. Use scale to measure mass of water 6. Calculate Density 7. Add 10mL of water to beaker using a 10mL pipet 8. Use scale to measure mass of water 9. Calculate Density Density of cow bone 10. Zero scale with 40mL of water in graduated cylinder 11. Place cow bone in graduated cylinder 12. Record mass of bone 13. Record change in volume in graduated cylinder Density of suet 14. Use scale to measure mass of suet 15. Calculate density Density of chicken breast 16. Use test tube and squish chicken breast down to exclude air in order to measure volume 17. Use scale to measure mass 18. Calculate density Nylon 19. Calculate the volume of nylon using geometry and using a ruler to measure sides 20. Use scale to measure mass 21. Calculate the volume of nylon using a graduated cylinder and displacement 22. Calculate for density Walnut wood 23. Calculate the volume of the walnut cylinder by using the ruler to measure the diameter, height. 24. Use scale to measure mass 25. Calculate the volume of walnut wood using graduated cylinder and displacement - use pencil to push walnut wood under the water since it floats.