CHM 131 Lecture Notes - Lecture 8: Stoichiometry, Partial Pressure, Relative Humidity

• School: University of Rochester
• Department: Chemistry
• Course: CHM 131
• Professor: Krugh

Document Summary

Assume the density of water is 1. 00 g/cm^3. oles h o m. Pv=nrt (1. 00 atm) v= (27. 75 mol) (0. 08206 l-atm/k-mol) (383. 2 k) A heron hill wine bottle filled with argon showed the loss of 0. 7 g upon extensive evacuation with the vacu-vin pump. After release of the partial vacuum, approximately 0. 5 g of mass gain was observed due to air going into the bottle. Calculate the pressure inside the wine bottle after pulling out 0. 7 g ar at 21 degrees celsius (294. For a 0. 750 l bottle at 1. 0 atm and 294 k, the bottle would hold 1. 24 g ar. (the molar mass of argon is 39. 95 g/mol, while the average molar mass of air is approximately. A 0. 10 ml sample of h2o s (l) at 20 degrees at 20. c (d- 0. 998 g/mol) is allowed to vaporize into a 25. 05 ls sample of dry hair at 20 degrees.