____ __________________________ ____ Chemistry — The Worksheet State Gaseous Period: Date: Name: rc while keeping and the same, whereas Avogadro’s law compares and while keeping Pv u 1. The Law of Gay-Lussac compares oi( and \Iq)l UVrb and .- k 2 , I41?.k — the same. 2. The three laws that express a direct relationship are: I CLLf,S’c a. k a j c. 4v04g,SYOS ) 1,4ev ? b. 7W % ‘ I The one law that expresses an inverse relationship is: L& u 1 i: a. 2. If 5.OOg of 02 gas has a volume of 7.201 at a certain temperature and pressure, what volume does 15.Og of 02 have underthe same conditions? ç . Answer: 7o L &‘I.’ .—--—. ‘ - ‘I *__.jx_ _ 3. If 1O.OOg of nitrogen gas has a volume of 15.01 at a particular temperature and pressure, what volume will 1O.OOg of oxygen gas occupy at the same temperature and pressure? = iDoD t2 /zOZi/,_L 3? L : ‘ 13.1 Answer: 1cQL. L : ‘c :T;z s :3r:f temperature and pressure, what volume will a particular 4. If 10.00 moles of nitrogen gas has a volume of 15.OL at 10.00 moles of oxygen gas occupy at the same temperature and pressure? lc.L) Answer: 1 t- I j Vo b-4A- e Ps1s%’,o . # l L4’: (c -s) ‘:; 5. If an amount of gas in a fixed volume has a pressure of 2.5Oatm at 320.K, what is the pressure of the gas (in fAe4%) atm)at520.K? &L I —. — P . T atm b Answer: t 3Z3k P 6. Calculate the following missing information: Initial: V = 25.OL, n = 2.OOmoI, T = 300.K, P = 1.97tm I FinalV=3OOL,n=2OOmol,T=275K,P=atm a. II )% rL “-‘*- , “ Is 97 J’ (.%LiI% 3 .1 :: f. ? 4 zT+k ___ (%_ b ‘1 ) 34 2b 0C2.1’c) Initial V=4 501, n = 675mo1,T= 15 0°C, P=3 S5atm Final: V = ? L, n = .800mol, T = 22.0°C, P = 4.25atm j, 7. Using the combined gas law, if the pressure and number of moles don’t change between the initial and final P1 I -4”OJftt conditions, the combined gas law just reduces down to Law. ‘ 8. A 6.50g sample of a gas has a volume of 5.001 and a pressure of 1.OOatm at 300.K. What is the molar mass of the gas? ,‘I1 :.o Answer: j;oo ‘ ‘ (l.ooR+m.Zcroo) g/mol e / 9. In order for a gas to behave “ideally”, the volume (size) of the individual gas particles must be 4 4iA (f ‘3 2 0 Wb#I_ compared to the volume of the container. 10. Temperature is a measure of the average gas. at of the molecules in a sample of c, 11. The kinetic molecular theory of gases proposes that the observed pressure of a gas arises from C lb i s of the gas molecules with the wall of their container. 12. In order for a gas to behave “ideally”, kinetic molecular theory suggests that gas particles exert /1 attractive or repulsive forces on each other. 13. A sample of oxygen gas is collected over water. The total pressure of gas collected was 772torr at 27.0°C. If the vapor pressure of water at 27.0°C is 26.7torr, what is the partial pressure due to the oxygen (in torr)? I Answer: 71. 3 (-7Yc) 7qç3+rw- torr 14. A mixture of gases contains 5.23g of N 2 and 4.41g of 02. What volume (in liters) does this mixture occupy at 25.0°C and 1.OOatm pressure? p ,, , o74frC : 32 0 . Answer: .7 qq ir ‘I V ‘ ‘. ‘i” 2 1/..... 15. Carbon dioxide gas, in the dry state, may be produced by heating calcium carbonate: ) + CO2(g) 5 () CaO( 3 CaCO What volume of COb collected dry at 55.0°C and a pressure of 774 torr, is produced by complete thermal decomposition of 1O.Og of CaCO ? 3 q qq i -e Cot.. \ , , Answer: ;, 6 ‘1 . L 1/;bdC V n rr 3 I h,..LCA.C0 I ( o ‘i ( 9 e f - .. 2. (oY L ¶X:!’ (fQI?+W:) çlc I )

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