Spring 2011 Mccord Exam 1

Spring 2011 Mccord - Version Exam 1 mccord(51600 This print-out should have 34 questions Multiple-choice questions may continue on the next column

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Version – Exam 1 – mccord – (51600) 1 This print-out should have 34 questions. Mul- tiple-choice questions may continue on the next column or page – find all choices before answering. From Anoyomous Person: Good luck, you will need it - Mccord’s exams are impossible. To highlight that, I edited the exam so all the explan- ations and answers are omitted. Have fun! - or not. If you really want to test your skills, close your book while doing this exam. Trivial stuff: this year was snow day, classes were closed, so we only needed to test Ch.12 without the Periodic Trends. Darn, that was the easiest part. c c = λν λ = h p = h mv 1 2 mv 2 = - Φ E n = - R n 2 (hydrogen atom) ν = R p 1 n 2 1 - 1 n 2 2 P - ¯ h 2 2 m d 2 ψ d x 2 + V ( x ) ψ = ψ n ( x ) = p 2 L P 1 2 sin ± nπx L ² E n = n 2 h 2 8 mL 2 n = 1 , 2 , 3 , ··· 001 10.0 points What is the frequency of light with a wavelength of 4.0 × 10 7 m? 1. 120 s 1 2. 3 . 0 × 10 14 s 1 3. 1 . 3 × 10 15 s 1 4. 7 . 5 × 10 14 s 1 5. 3 . 0 × 10 14 s 1 Explanation: 002 10.0 points Assume n 1 and n 2 are two adjacent energy levels of an atom. The emission of radiation with the longest wavelength would occur for which two val- ues of n 1 and n 2 ? 1. 5,4 2. 7,6 3. 8,7 4. 3,2 5. 2,1 6. 6,5 7. 4,3 Explanation: -`¡Ìi`ÊÜ¡Ì¢ÊÌ¢iÊ`i£¤ÊÛiÀᤥʤvÊ 6¡v¢ÝÊ*À£Ê*,3Ê-`¢Ì£À Ê /¤ÊÀi£¤ÛiÊÌ¢¡ÃÊ¥¤Ì¡Vi]ÊۡáÌ\Ê ÜÜÜ°¡Vi¥¡°V¤£ÉÕ¥¦¤V§°¢Ì£
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Version – Exam 1 – mccord – (51600) 2 003 0.0 points If more points are awarded on this as- signment, would you like them added to your score? 1. NO, leave my score alone, I prefer the lower score, I will get 100 percent anyways. 2. YES, I am an idiot, if I get dont get it I will die - Add my score. Explanation: This should be a no-brainer. Most students want higher scores. If you picked yes, you got credit for the question and you got the extra points you asked for (if they were granted by your instructor). If you answered NO, you also got what you wanted. .. no points awarded. 004 10.0 points The radial distribution plot shown below could be from which hydrogen atom wave- function? 0 5 10 15 20 0 0 . 05 0 . 10 0 . 15 radius ( r/a 0 ) 4 πr 2 Ψ a 0 1. 2 s 2. 2 p 3. 3 d 4. 3 s 5. 1 s Explanation: 005 10.0 points Which response identifies a possible ψ for the last-filled electron in a chloride ion? 1. ψ 2 , 1 , 2 2. ψ 3 , 1 , 1 3. ψ 3 , 0 , 0 4. ψ 2 , 0 , 0 5. ψ 2 , 0 , 1 6. ψ 3 , 3 , 1 Explanation: 006 10.0 points Which has a longer wavelength, a 280 nm photon or a 320 nm photon? 1. All photons have the same wavelength.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/10/2011 for the course CH 301 taught by Professor Fakhreddine/lyon during the Spring '07 term at University of Texas at Austin.

Page1 / 11

Spring 2011 Mccord - Version Exam 1 mccord(51600 This print-out should have 34 questions Multiple-choice questions may continue on the next column

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online