MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) What volume will a balloon occupy at 1.0...

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.1) What volume will a balloon occupy at 1.0 atm, if the balloon has a volume of 7.6 L at 3.8 atm? 1)A) 29 L B) 17 L C) 2.0 L D) 35 L E) 5.0 L2) What would happen to the pressure of a confined gas sample if the volume of that sample wasdecreased while the temperature was held constant?2)A) it would increase B) it would decreaseC) it would stay the same D) cannot determine from given information3) What temperature must a balloon, initially at 25ô€ˆC and 2.00 L, be heated in order to have a volumeof 6.00 L?3)A) 75 K B) 993 K C) 894 K D) 403 K E) 655 K4) What pressure will 14.0 g of CO exert in a 3.5 L container at 75°C? 4)A) 4.1 atm B) 5.0 atm C) 6.4 atm D) 2.3 atm E) 1.1 atm5) Helium gas at 25 oC filled a balloon to a volume of 2.25 L. What would the volume of this balloonbe when cooled (at constant pressure) to liquid-nitrogen temperature (-196 oC)?5)A) -17.6 L B) 8.7 L C) 0.58 L D) 3.5 L E) 0.29 L6) Which of the empirical gas laws allows you to solve (applies to) Problem #5 above? 6)A) Avogadro's Law B) Boyle's LawC) Charles's Law D) Breyfogle's Law7) What volume will 0.780 moles of He occupy at STP? 7)A) 70.0 L B) 43.7 atm C) 22.4 L D) 15.6 L E) 17.5 L8) A syringe initially holds a sample of gas with a volume of 285 mL at 355 K and 1.88 atm. To whattemperature must the gas in the syringe be heated/cooled in order to have a volume of 435 mL at2.50 atm?8)A) 721 K B) 572 K C) 175 K D) 139 K E) 466 K9) A cylinder of compressed nitrogen gas contains 867 g N2. If the volume of the cylinder is 22.5 L,what is the pressure of the N2 if the gas temperature is 298K?9)A) 943 atm B) 67.3 atm C) 33.7 atm D) 0.0297 atm E) 2.82 atm10) Which of the following samples will have the greatest volume at STP? 10)A) 22 g Cl2B) 22 g COC) 22 g O2D) 22 g HeE) All of these samples would have the same volume at STP.111) A bacterial culture isolated from sewage produced 35.5 mL of methane, CH4, at 31 oC and 753mmHg. What is the volume of this methane at STP?11)A) 31.6 mL B) 32.2 mL C) 39.2 mL D) 39.9 mL12) Which of the following samples will have the greatest average speed at 355 K? 12)A) NeB) Cl2C) C2H4D) CH4E) All of these samples will have the same average speed at the same T.13) Which of the following samples has the greatest density at STP? 13)A) XeB) SO2C) SF6D) NO2E) All of these samples have the same density at STP.14) Determine the density of CO2 gas at STP. Molar mass of CO2 is 44.01 g/mol. 14)A) 1.96 g/L B) 5.10 g/L C) 1.80 g/L D) 4.46 g/L E) 2.24 g/L15) Determine the volume of O2 (at STP) formed when 50.0 g of KClO3 decomposes according to thefollowing reaction. The molar mass for KClO3 is 122.55 g/mol.2 KClO3(s) ô€€ 2 KCl(s) + 3 O2(g)15)A) 8.22 L B) 14.6 L C) 13.7 L D) 9.14 L E) 12.3 L16) Which of the following laws concerning gases is misstated? 16)A) At fixed temperature and pressure, the volume of a gas is inversely proportional to thenumber of moles of that gas.B) The average translational kinetic energy of the molecules of a gas is directly proportional tothe temperature in Kelvin.C) In a mixture of gases, the total pressure of the gases equals the sum of the individualpressures of each gas.D) At fixed pressure, the volume of a gas is directly proportional to its temperature in Kelvin.E) At fixed temperature, the volume of a gas is inversely proportional to its pressure.17) A 1.50 L mixture of helium, neon, and argon has a total pressure of 1.47 atm at 298K. If the partialpressure of helium is 0.38 atm, and the partial pressure of argon is 0.32 atm, what mass of neon ispresent in the mixture?17)A) 1.8 g B) 0.97 g C) 28 g D) 0.048 g218) If a 10.0 g sample of Zn(s) is treated with excess HCl, what volume of hydrogen gas is evolved atSTP?Zn (s) + 2 HCl (aq) ô€€ ZnCl2 (aq) + H2 (g)18)A) 347 L B) 3.43 L C) 7.36 L D) 146 L E) 6.85 L19) Which of the gases in the graph below has the largest molar mass? Assume temperature is constant. 19)A) AB) BC) CD) DE) There is not enough information to determine.20) The greatest deviation of a real gas from the Ideal Gas Law is expected at 20)A) low T and low P.B) high T and high P.C) high T and low P.D) low T and high P.E) Real gases don't deviate from the Ideal Gas Law.3