CH 121 Final Exam F05

CH 121 Final Exam F05 - Chemistry 121 Final Exam Fall 2005...

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Chemistry 121 Fall 2005 Oregon State University Final Exam December 6, 2005 Dr. Richard Nafshun Test Form 1 Instructions: You should have with you several number two pencils, an eraser, your 3" x 5" note card, a calculator, and your University ID Card. If you have notes with you, place them in a sealed backpack and place the backpack OUT OF SIGHT or place the notes directly on the table at the front of the room. Fill in the front page of the Scantron answer sheet with your test form number (listed above), last name, first name, middle initial, and student identification number. Leave the class section number and the test form number blank. This exam consists of 40 multiple-choice questions. Each question has four points associated with it. Select the best multiple-choice answer by filling in the corresponding circle on the rear page of the answer sheet. If you have any questions before the exam, please ask. If you have any questions during the exam, please ask the proctor. Open and start this exam when instructed. When finished, place your Scantron form and note card in the appropriate stacks. You may keep the exam packet, so please show your work and mark the answers you selected on it. Rule 1:All nitrates, group 1A metal salts and ammonium salts are soluble. Rule 2:All carbonates, hydroxides, phosphates and sulfides are insoluble. Rule 3:Rule 1 always takes precedent. R = 0.0821 K mol atm L R = 8.314 K mol s m kg 2 2 Mass Molar RT rms 3 = μ PV = nRT 760 Torr = 1 atm = 760 mm Hg K = 273.15 + °C N A = 6.02 x 10 23 2 2 2 2 1 1 1 1 T n V P T n V P = q = mcΔT E = q + w 1 foot = 12 inches (exact) 1 inch = 2.54 cm (exact) 1 kg = 2.2 pounds R H = 2.180 x 10 -18 J/photon c = 3.00 x 10 8 m/s E = hν λ ν c = h = 6.626 x 10 -34 J·s Energy levels in an H atom: E n = - 2 1312 n mol kJ and E high – E low = - 2 1312 high mol kJ - - 2 1312 low mol kJ centi c 1/100 milli m 1/1000 kilo k 1000 micro μ 10 -6 nano n 10 -9 1 inch = 2.54 cm (exact) 1 mole = 6.02 x 10 23
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Substance J/g ּ ˚C Substance J/g ּ ˚C Water 4.184 Soil (typical) 1.046 Methyl Alcohol 2.549 Air 1.046 Ice 2.093 Aluminum 0.901 Steam 2.009 Mercury 0.138 Benzene 1.750 Gold 0.130 Wood (typical) 1.674 Lead 0.128 Name Charge Formula Hydroxide 1- OH - Cyanide 1- CN - Nitrate 1- NO 3 - Acetate 1- CH 3 COO - Carbonate 2- CO 3 2- Phosphate 3- PO 4 3- Hydronium 1+ H 3 O + Ammonium 1+ NH 4 + Sulfate 2- SO 4 2-
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___________________________________________________________________________________ _ Unit 1 (Material Assessed on Exam 1) ___________________________________________________________________________________ _ 1. A student measures the volume of a sodium hydroxide solution to be 342.090 mL. (A)
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CH 121 Final Exam F05 - Chemistry 121 Final Exam Fall 2005...

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