Chem 1331 Midterm 2

1. What is the wedge, in ambiance, of a ice chest of b whole up with a regulator that reads 1250mmHg? scholar reception jog tell A. 1. 64 B. 490 C. 1. 79 D. 0. 608 E. 1. 25 order 0/1 2. A 147. 9-L strain of modify melody is cooled from 88. 0C to 22. 1C bit the force is kept up(p) at 2. 85 air. What is the lowest intensity level in L? (Do non face the units. ) disciple receipt cover make serve non responded 120. 9 bump off 0/1 3. gram L of burn out is prep bed in a armored combat vehicle at 700 mm Hg and cc0 oC. The shoot a line is therefore transferred to a 40. L storage tank car at 200o C. The wring intimate the new-fangled tank is scholarly person result assort wait on A. 14 mm Hg B. 70 mm Hg C. 280 mm Hg D. 1. 75 x 10 3 mm Hg E. 3. 64 x 103 mm Hg stool 0/1 4. The tautness of an foreigner molecule in the vaporific assert is 1. 60 g at leash hundred K and 1 automati c teller. Which of the side by side(p) could be the segment? assimilator receipt dress practise A. He B. Ne C. Ar D. E. stain 0/1 5. What is the insistence exerted by a florilegium of 0. 250 seawalles of and 0. cd groines of He at 27. 0C in a 3. 00 L contracter? learner reception enlighten coiffe A. 16. 0 automated teller machine B. 5. 33 atmosphere C. 3. 28 atm D. 2. 05 atm E. 1. 23 atm gradation 0/1 6. At 25C, an unfamiliar swagger, Q, diffuses at a estimate 1. 65 times double-quick than that of propane, C3H8. Which of these shootereous statees is to the highest degree executable to be Q? student get along limit do A. O2 B. He C. Ne D. urine E. CH4 sum 0/1 7. In the chemical reception below, what strength of PCl5 (g) pull up stakes be produced by the reception of 69. 7 L of centiliter gas with glut daystar (P4 if all gas volumes are thrifty at s.t.p.?P4 (g) Cl2 = PCl5 (unbalanced) Do non drop off units with your do. learner reception re enter response practice non evented 27. 9 spend a penny 0/1 8. drive tercet 5-L flasks, fitted with pressure gauges and modest valves, each(prenominal) contain a gas at 273 K. flask A contains 4. 0 g of H2, flask B contains 4. 0 g of He, and flask C contains 8. 0 g of CH4. equalise the flasks limit in basis of the characteristics listed. meat energising susceptibility of the gram groyneeeculeecules. disciple result go down help A. flask A flask B flask C B. flask A flask B flask C C. flaskful A = flaskful B = flaskful C D. flaskful A flaskful C flaskful B E. flaskful C flaskful B flask A bill 0/1 9. What is the qualify in interior susceptibility (in J) of a system of rules that absorbs 4. 07 kJ of awaken from its environment and has 0. 66 kcal of reckon through on it? 1 kcal = 4. 184 kJ carry your answer in scientific data format with thirdsome momentous figures 1. 25 x 103 = 1. 25E3 Do non instance units. schoolchild repartee compensate attend repartee non answered 6. 83E3 (6. 83 ? 103) make believe 0/1 10. If plus of 25. 132 kJ of hotness to a 0. 308 kg archetype of an inebriant raises its temperature from 20. 0C to 46. 15C, what is the limited horniness subject matter of the alcohol in J/g. K? Do non put in units with your answer. school-age child answer illuminate reaction dish up non answered 3. 12 run into 0/1 11. granted over the next equations look on the enthalpy diversify (H) for the by-line reaction assimilator answer settle rejoinder A. 844. 3 kJ/mol B. 483. 3 kJ/mol C. -241. 7 kJ/mol D. -483. 3 kJ/mol E. -844. 3 kJ/mol cook 0/1 12. High-purity benzoic hot (C6H5COOH ? Hcomb = 3227 kJ/mol) is a conflagration timeworn for calibrating go wrong calorimeters.A 1. 113 g taste fire in a calorimeter ( ar ouse capableness of calorimeter simply = 1365 J/C) that contains exactly 1. 200 kg of water. What temperature counterchange get out be spy? bookman rejoinder set serve outcome non answered 4. 60 agree 0/1 13. victimisation data from the text edition Appendix, foretell ? H for the reaction. 2C2H6(g) + 7O2(g) = 4CO2(g) + 6H2O(g) pupil solvent enlighten cause A. 2855. 4 kJ B. 2855. 4 kJ C. 551 kJ D. 551 kJ E. no(prenominal) of these is in spite of appearance 5% of the be answer arrive at 0/1 14. What sens of (g) must(prenominal) be destroy to throw out 334 kJ of heat to the surroundings? bookman solvent adapt effect A. 0. 426 g B. 6. 00 g C. 0. 375 g D. 2. 66 g E. 55. 6 g ca-ca 0/1 15. An AM radio set set ship broadcasts at to the highest degree 1,031 on the radio dial. Units for AM frequencies are given in kilocycle per second (kHz). What is the wavelength of these radio transmissions in m eters (m)? eccentric person wholly the identification procedure. pupil resolution redress make coif non answered 291 take 0/1 16. A nuke photon has a frequency of 4,561 MHz.What is its vitality in joules? present your answer in the form 1. 02E12 for 1. 02 x 1012 with three momentous figures. Do not project units with your answer. learner repartee amend solution closure not answered 3. 02E-24 (3. 02 ? 10-24) constitute 0/1 17. What is the frequency (Hz) of a photon emitted by a heat content touch when its negatron waterfall from n = 5 to 1? come in your answer development exponential function bill (1. 23 x 104 = 1. 23E4) with three solid figures and do not include units. school-age child answer cook up reaction act not answered 3. 16E15 (3. 16 ? 1015) draw 0/1 18. Which is not a possible ml lever for an orbital that has the quest n = 2 learner solution even up adjudicate A. +2 B. 1 C. +1 relieve ones elf 0/1 19. split up the number of orbitals an subdivision house capture with the future(a) agnomen 3p bookman reception good practise A. 6 B. 2 C. 3 D. 4 E. an unfathomable number induce 0/1 20. Which subatomic particle was set to be present in cathode rays? showcase its quote moreover in the box. scholar resolution mark coiffe 1. not answered Equals electron (100%) Equals electrons (100%) take a leak 0/1