3/7/2016Week ThreeWeek ThreeDue: 11:59pm on Friday March 18 2016You will receive no credit for items you complete after the assignment is due. Grading PolicyExercise 4.88Assign oxidation states to each atom in each of the following species.Part AExpress your answer as a signed integer.ANSWER:the oxidation state of =Part BExpress your answer as a signed integer.ANSWER:the oxidation state of=Part CExpress your answer as signed integers separated by a comma.ANSWER:the oxidation states of =Part DExpress your answer as signed integers separated by a comma.ANSWER:the oxidation states of =https://session.masteringchemistry.com/myct/assignmentPrintView?assignmentID=42125721/15 3/7/2016Week ThreePart EExpress your answer as signed integers separated by a comma.ANSWER:the oxidation states of =Part FExpress your answer as signed integers separated by commas.ANSWER:the oxidation states of =Exercise 4.90What is the oxidation state ofin each of the following ions?Part AANSWER:Part BANSWER:Part CANSWER:https://session.masteringchemistry.com/myct/assignmentPrintView?assignmentID=42125722/15 3/7/2016Week ThreePart DANSWER:Exercise 4.92Part AWhich of the following reactions are redox reactions?Check all that apply.ANSWER:Part BThis question will be shown after you complete previous question(s).Part CThis question will be shown after you complete previous question(s).Part DThis question will be shown after you complete previous question(s).Exercise 4.94https://session.masteringchemistry.com/myct/assignmentPrintView?assignmentID=42125723/15 3/7/2016Week ThreeComplete and balance each of the following equations for combustion reactions.Part AExpress your answer as a chemical equation. Identify all of the phases in your answer.ANSWER:Part BExpress your answer as a chemical equation. Identify all of the phases in your answer.ANSWER:Part CExpress your answer as a chemical equation. Identify all of the phases in your answer.ANSWER:Part DExpress your answer as a chemical equation. Identify all of the phases in your answer.ANSWER:Exercise 5.2Part AExplain what happens when you inhale.https://session.masteringchemistry.com/myct/assignmentPrintView?assignmentID=42125724/15 3/7/2016Week ThreeANSWER:Essay answers are limited to about 500 words (3800 characters maximum including spaces).3785 Character(s) remaining(none provided)Part BWhat forces air into your lungs?ANSWER:Essay answers are limited to about 500 words (3800 characters maximum including spaces).3785 Character(s) remaining(none provided)Exercise 5.30The pressure on top of Mt. Everest averages about 235.Part AConvert this pressure to.ANSWER:=Part BConvert this pressure to.ANSWER:=Part CConvert this pressure to.https://session.masteringchemistry.com/myct/assignmentPrintView?assignmentID=42125725/15 3/7/2016Week ThreeANSWER:=Part DConvert this pressure to.ANSWER:=Exercise 5.34Part AGiven a barometric pressure of 751.5manometer. calculate the pressure of gas sample (a) as indicated by theANSWER:=Part BGiven a barometric pressure of 751.5manometer. calculate the pressure of gas sample (b) as indicated by thehttps://session.masteringchemistry.com/myct/assignmentPrintView?assignmentID=42125726/15 3/7/2016Week ThreeANSWER:=Exercise 5.44Part AWhat is the pressure in a 24.9 cylinder filled with 32.0 of oxygen gas at a temperature of 340 ?Express your answer with the appropriate units.ANSWER:=Exercise 5.54The following picture represents a sample of gas at a pressure of 1https://session.masteringchemistry.com/myct/assignmentPrintView?assignmentID=4212572 a volume of 1 and a temperature of 25.7/15 3/7/2016Week ThreePart AWhat would happen to the pressure if the volume were reduced to 0.5 and the temperature increased to 250?Express your answer using one significant figure.ANSWER:=Exercise 5.21Part AHow is the kinetic energy of a gas related to temperature?ANSWER:Essay answers are limited to about 500 words (3800 characters maximum including spaces).3785 Character(s) remaining(none provided)Part BHow is the root mean square velocity of a gas related to its molar mass?ANSWER:https://session.masteringchemistry.com/myct/assignmentPrintView?assignmentID=42125728/15 3/7/2016Week ThreeEssay answers are limited to about 500 words (3800 characters maximum including spaces).3785 Character(s) remaining(none provided)Exercise 5.22Part ADescribe how the molecules in a perfume bottle travel from the bottle to your nose.ANSWER:Essay answers are limited to about 500 words (3800 characters maximum including spaces).3785 Character(s) remaining(none provided)Part BWhat is mean free path?ANSWER:Essay answers are limited to about 500 words (3800 characters maximum including spaces).3785 Character(s) remaining(none provided)Exercise 5.23Part AExplain the difference between diffusion and effusion.ANSWER:https://session.masteringchemistry.com/myct/assignmentPrintView?assignmentID=42125729/15 3/7/2016Week ThreeEssay answers are limited to about 500 words (3800 characters maximum including spaces).3785 Character(s) remaining(none provided)Part BHow is the effusion rate of a gas related to its molar mass?ANSWER:Essay answers are limited to about 500 words (3800 characters maximum including spaces).3785 Character(s) remaining(none provided)Exercise 5.84A flask at room temperature contains exactly equal amounts (in moles) of nitrogen and xenon.Part AWhich of the two gases exerts the greater partial pressure?ANSWER:nitrogenxenonthey will exert the same partial pressurePart BThe molecules or atoms of which gas have the greater average velocity?ANSWER:nitrogenxenonmolecules of both gases have the same partial pressurehttps://session.masteringchemistry.com/myct/assignmentPrintView?assignmentID=421257210/15 3/7/2016Week ThreePart CThe molecules of which gas have the greater average kinetic energy?ANSWER:nitrogenxenonmolecules of both gases have the same average kinetic energyPart DIf a small hole were opened in the flask which gas would effuse more quickly?ANSWER:nitrogenxenonthey would effuse with the same quicknessExercise 5.90A sample ofeffuses from a container in 46 seconds.Part AHow long would it take the same amount of gaseousconditions?to effuse from the same container under identicalExpress your answer using two significant figures.ANSWER:=Exercise 5.36A sample of gas has an initial volume of 15.0 at a pressure of 1.09.Part AIf the sample is compressed to a volume of 11.5 what will its pressure be?ANSWER:https://session.masteringchemistry.com/myct/assignmentPrintView?assignmentID=421257211/15 3/7/2016Week Three=Exercise 5.48A weather balloon is inflated to a volume of 27.9 at a pressure of 732balloon rises in the atmosphere to an altitude where the pressure is 400.and a temperature of 24.5 . Theand the temperature is 16.8 .Part AAssuming the balloon can freely expand calculate the volume of the balloon at this altitude.ANSWER:=Exercise 5.58Part AUse the molar volume of a gas at STP to calculate the density (in) of nitrogen gas at STP.ANSWER:=Exercise 5.66A gas mixture with a total pressure of 750pressures: 116; 211contains each of the following gases at the indicated partial; and 192. The mixture also contains helium gas.Part AWhat is the partial pressure of the helium gas?ANSWER:=Part BWhat mass of helium gas is present in a 14.3 sample of this mixture at 266 ?ANSWER:https://session.masteringchemistry.com/myct/assignmentPrintView?assignmentID=421257212/15 3/7/2016Week Three=Exercise 5.70Part AWhat is the mole fraction of oxygen gas in air (see table 5.3 in the textbook)?Express your answer using two significant figures.ANSWER:=Part BWhat volume of air contains 10.2 of oxygen gas at 273and 1.00?Express your answer using two significant figures.ANSWER:=Exercise 5.76Consider the following chemical reaction.Part AWhat mass ofis required to form 1.3 ofat a temperature of 335 and a pressure of 0.996?Express your answer using two significant figures.ANSWER:=Exercise 5.26Part Ahttps://session.masteringchemistry.com/myct/assignmentPrintView?assignmentID=421257213/15 3/7/2016Week ThreeExplain why ozone is a pollutant in the lower atmosphere but a necessary component of our upper atmosphere.ANSWER:Essay answers are limited to about 500 words (3800 characters maximum including spaces).3785 Character(s) remaining(none provided)Exercise 5.94Part AWhich postulate of the kinetic molecular theory breaks down under conditions of low temperature?ANSWER:The collision of one particle with another (or with the walls) is completely elastic.The size of a particle is negligibly small.The average kinetic energy of a particle is proportional to the temperature in kelvins.Part BThis question will be shown after you complete previous question(s).Exercise 5.146Part AWhich of the following gases would you expect to deviate most from ideal behavior under conditions of lowtemperature: ?ANSWER:https://session.masteringchemistry.com/myct/assignmentPrintView?assignmentID=421257214/15 3/7/2016Week ThreePart BThis question will be shown after you complete previous question(s).Score Summary:Your score on this assignment is 0.0%.You received 0 out of a possible total of 4 points.https://session.masteringchemistry.com/myct/assignmentPrintView?assignmentID=421257215/15
