CHEM101 Lecture Notes - Lecture 19: Ideal Gas, Stoichiometry, Torr

Data Table 1. Pressure and Temperature Measurements. Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 Trial 6 Piotal (kPa P (kPa) Pvap (kPa) Temperature (℃) as.z 263 29S.2S 24 24S,25 243.2s 34S 245.is ì œ7-- 245.75 Pir 29734.1 21s.cS 301,1 275.25 13,25 Part 2. Data Analysis 1. The Pairfor Trials 3-6 must be calculated because the temperatures were increased. As you warm the flask, the air in the flask exerted pressure that you must calculate. Use the gas law relationship shown below to complete the calculations. Remember that all gas law calculations require Kelvin temperature. Use the Pair from Trial 1 as Pi and the Kelvin temperature of Trial 1 as T1. T. T 2. Calculate and record Pigp for each trial by subtracting Pai from Prod 3. Prepare and print a graph of Pvop (Y-axis) vs. Celsius temperature (X-axis). a. Disconnect your Gas Pressure Sensor and Temperature Probe from the b. Choose New from File menu. An empty graph and table will be created in c. Double-click on the x-axis heading in the table, enter a name and unit, then d. Double-click on the y-axis heading in the table, enter a name and unit, thern e. Autoscale the graph if necessary. Print this graph, be sure to include a title for interface Logger Pro. enter the five values for temperature (Celsius) from your Data Table above. enter the five values for vapor pressure (mm Hg) from your data table above. the graph. 312 25.6 3.26 ⑤1.1-83.25 (e) / 2.15-92.Y8 evised 08/2013 HRM

PCl_5 has _____ electron and a _____ molecules arrangement. A) trigonal bipyramidal B) tetrahedral C) trigonal bipyramidal D) E) square pyramid Of the following molecules only _____ is polar. A) BCl_3 B) NCl_3 C) FeCl_2 D) Cl_2 E) CCl_4 The hybridization of the oxygen atom labeled y in the structure below is _____. The C-O-H bond angle in _____ A) sp, 180 degree B) sp, 90 degree C) sp^3 90 degree D) sp^2, 109.5 degree E) sp^3, 109.5 degree A molecular orbital can accommodate a maximum of _____ electron[s]. A) 1 B) 2 C) 4 D) 6 E) 12 Of the following _____ is a valid statement of Charles' law. A) V = constant middot P B) V/T = constant C) V = constant middot D) P/T = constant E) PV = Constant Standard temperature and pressure (STF) in the content of gases, refers to _____ A) 273.15 K and 1 pascal B) 298.15 K and 1 atm C) 273.15 k and 1 torr D) 273.15 K and 1 atm E) 298 15 K and 1 torr A sample of a gas (50 mol) at 1.0 atm is expanded at constant temperature from 10 L to 15 L. The final pressure is _____ atm. A) 0.67 B) 1.5 C) 15 D) 7.5 E) 3.3 A pressure of 0.500 atm is the same as a pressure of _____ of mm Hg. A) 299 B) 193 C) 330 D) 760 E) 380