1307HW07Key - Name Chapter 7 Homework CHEM 1307 - 003...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1

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

View Full DocumentRight Arrow Icon
Background image of page 2
Background image of page 3

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

View Full DocumentRight Arrow Icon
Background image of page 4
Background image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Name Chapter 7 Homework CHEM 1307 - 003 (print your name) An EM wave has a frequency of 5.00 x 10” Hz. 1. What is the energy (in J) of each photon of this radiation? E _ _ M E?) E 1 ‘MJ 3 (5-935 XmflJ‘S) (5-Doxio s") (c) 3.31 x1022.) .-.-. 3.31xt0 5 (d) 1.66 “0'” J (e) 4.98 x 10“0 J What is the energy in kJ of one mole of photons of this radiation? (3) 3.00 x10"5 kJ/mol __ 2.3 (3.3l mo ‘qlJ‘DC 6.02.2 Mo Ami) (b) 10.0 lemol (c) 199 lemoi __ 5 (d) 1.99x10‘kJ/mol - l-‘HS‘MO J/wiol (e) 3.00 x 10" kJ/mol KLLL radio station broadcasts country music at 96.3 MHz (megahertz. or ‘l06 Hz). Find the wavelength of this radio wave. (a) 3.12m c _-_-_ a nm = i: w = 3J1 M (d) 3.12x10“ pm P “its x10 (6) 3.12 x10'1oA Rank the following photons in terms of increasing energy. IR (v = 6.5 x 101:1 Hz); microwaves (A = 0.31 mm); uv (v = a x1015 5“); radio waves (v =100 MHz); X-ray (A. = 1,5 A) (a) X-ray < microwave < radio waves < IR < UV (0) X-ray < UV < IR < microwave < radio waves (0) microwave < radio waves < IR < UV < X-ray (d) radio waves < microwave < IR < UV < X-ray (e) lR < microwave < May < UV < radio waves Which move of electron gives off the most energetic spectral line of the H atom? (a) n1=2en=6 Austral-‘na AE=ttu c=?\-u AE—= hc/A. ‘b’”1=1*”=°° at= Nev-in (C)n1=2—>n=oc h 4Emam_ __i__ _ __1__ fianrlu 5° “ ch( “I: l‘\ (d) n=oc—>n1=2 (e) n=oo_.n1=1 “\=lt n=m. AE: What is the wavelength (in nm) of the most energetic spectral line in the visible series of the H atom? . . (a) 0.25 nm In H Wemm. “i=2 {or VG:le series b 91.1 \ . to; 109.7Tm WW“: wflm‘ ““‘= 10:? 0° +° Vii-=1. (d) 365 nm ‘ 1 _‘ ‘ ‘ (e) 274 nm 3: =. 0.0%? )qu m )Q 2.: " 31) T .-.: %)(l.OQTXlDTm-1) )\=3.5§x\o- wi What are the principle quantum number and angular momentum quantum number of the following designations? 7. 3d (a)n=2.l=3 :0 --b s ®n=3,l=2 _ B (c)n=3.l=1 1“ “’1’ (d)n=3,i=0 1.3, -—9 at (e)n=3.l=3 1:3 __,{_ 8 5f (a)n=5.!=4 (b)n=5.i=0 (c)n=5,l=3 C (d)n=5.l=1 (e)n=5.i=2 9 25 (a)n=2,l=0 (b)n=2,l=1 A (c)n=2,!=—1 (d)n=2.l=2 (e)n=2.l=-2 10. Which of the following combinations of quantum numbers are allowed? w 1. n = 7, {=4 ' x 2. n = 3. I: 3 v 3. n = 2. 7x 11. Which of the following combinations of quantum numbers are not allowed? X 1. n=1.i=1,m,=0 V 2. n=3.i'=2.m,=0 v 3. n=2,l=1,m,=-1 4. n=5 l=3,m,=~4 (a) 1 and 3 5 lb) 1 and 4 (c) 2 and 3 (d) 1. 3 and 4 (e) 4 only 12. Which of the following designations are correct? X1.1p X 2.3f V3.15 X4.2d a) 1 only Which magnet quantum number (m,) is not allowed in the following designations? 333132) my with it. E .11 r. ore possible m; : 2Q +l 5:; a2" of the above are allowed 14.9! rs 4) GO" 6 M (a (b C (c (d (e vav‘.’ I —4 15. Which of the following designations has the quantum numbers: n = 4. I: 1? (a) 43 (b) 4P B (c) 4d (d) 4f (e) None of the above 16. How many orbitals in an atom can have in n = 4 level? ’1 . 5:; 3 it orbit-mas M Mk have} = ‘n (C) 5 E (d) 7 (e) 16 I. 17. The possible number of different values of m; (= 2! +1) for certain angular momentum quantum number! indicate: (a) number of energy levels of orbitals (b) number of shapes of orbitals in a level :D (c) number of orbitals in a level (d) numberoforbitalsinasublevel all-Ml 5&- of- on'ewt-ndn‘ons of ulna-90$ M an“ (e) number of shapes of orbitals in a sublevel 18. The possible number of different values of l' for certain principle quantum number n indicate: (a) number of energy levels of orbitals (b) number of sublevels in a level owl it Of- Slvfes VF "H515 M- «All E) (0) number of orbitals in a level (CI) number of orbitals in a sublevel (e) number of shapes of orbitals in a sublevel 19. Which of the following quantum number combinations is not allowed? (a) n=2;l=‘l,m,=-1 (b) (C) (d) (Ti H II II ll thP 3‘ II II II II 5.0.“??? :33: q._--..'--..—-.. ‘5' v b 20. Which of the following quantum number combinations is allowed? (a) n=1;!=0,m,=1 (b) n=2;l=1,m,=-1 (c) n=7;l=l,m,=+2 (d) n=3;1=-‘l,mi=2 (e) n=4;l=5,mi=-1 How many orbitals in an atom can have for each of the following designations: 21. 22. 23. 24. 25. 26. 3P (a) 1 (b) 2 (C) 3 (d) 4 (e) 5 2.2 +1 = (3N?) H 7 II 2K5+t N n=8 ()5 ()5 ()3 ()3 ()7 Calculate the energy difference (AE) for energy absorbed when one mole of gaseous hydrogen atom undergo the transition from n c 1 to n = on. (also called as ionization energy) (a)1.31x103lemol _I__ 7 _. _i__ = Lam“ (b) 262lemol )t “(“°"‘7"‘° “ 3‘ l" 33‘) A “l - I ) 131Wmol E : “cm a “nexus M's-S) (ipoxm m a) ___ 2J8Kk8183 (C _ (d) 65.6 kJ/rnoal an: Ma Q m (e) 2.18x 10 Jlmol L2A8x‘uflfij “(3.011szun 1 = Lyman VmJ An electron in the n = 4 level of an H atom emits a photon of wavelength 1876 nm. Use the Rydberg equation to calculate to what energy level the electron moves? When e." Bath 0. ?ko't-on, H" Moves {rankktbku EMB’ \wd +o «\ew one, u :cu‘tg, h ;, \egs grimy 4' (e) 2 \ \ l u ._L_. _ 71*: RL—lfin—h‘) iaruio‘lm =(\~°q‘rxio7m‘)( n.“ 1‘13) l J»... 2 ° ._L= ° 4. h" it U‘ST‘Xlosmxlp‘thlé'm”) 1' 0'48” n3 0485‘“ 15‘- T‘fia': D'u‘oq “3.: ‘LOD “\ = 3 An alpha particle (mass = 6.6 x 10'“ g) emitted by radium travels at (2.6 i 0.1) x 10? mifh. 27. What is its de Broglie wavelength (in nanometers)? % = .11— (a) 2.8 x 10‘6 nm -14 -3, “W (b) 3.7 x10‘ nm N: 6.6x“: 3 = 6.6110 kg, 3 (0)2'BX10:3nm ,. 7 ‘ LOH kn \OBOWI lkr 7 (d) 8.7x103nm V‘WW =l.l(:xlo H/S f (e) nm '34 1,‘ —‘5 I I .5puo‘ugtubxto‘ws) 5 B‘BA'X‘O w‘ 28. What Is the uncertalnty In Its posmon? q? (a) Ax21.8x10'11:m (Ax )UMAV) 21%, w: 6.61m 33 (b) Ax E: 2.3 x10" m " l Lb kw. \uonu \kr S A (c) Ax24.7x10'13m A“: M \M: um. 505 '4'4wa "/5 (d) Axe 1.8 x 10:; m M ahhm-v. 34 q _H . _, = I I I 29. How fast must a 50. 9 golf ball travel in order to have a de Broglie wavelength that is equal to that of an x-rgy photon with = 1.00 A? (a)1.3x10' m/s __\1_ _ _\n___ F5 (b)1.3x10'22mfs A: W“! V" w); (c) 1.3x10'12m/s _, (d 1.3x10'21mls ‘M' 50-3 =5 50.xlo ua ) (e) 1.3x1022m/s gkho‘; z = Loo x lo"‘° w~ 062.6 xm-a‘I-s -11 (5.0xlo'1355)(I.uox\o"'u-) = "3 m0 “6/; v: ...
View Full Document

Page1 / 5

1307HW07Key - Name Chapter 7 Homework CHEM 1307 - 003...

This preview shows document pages 1 - 5. Sign up to view the full document.

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