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CH 221—Ziegler KEY Chem 221 worksheet for Chapter 6, 7
- Complete the following table by calculating the missing terms
λ wavelength ν frequency (Hz or sec-1)
Energy/photon (J)
Energy/ mole (kJ/mole) 4.18 x 10-6^ m (A) 7.18x 10^13 s-1^ (B) 4.76 x 10-20^ J (C) 28.6 kJ mol-
(D) 8.02 x 10-7^ m 3.74 x 10^14 Hz (E) 2.48 x 10-19J (F) 149 kJ mol- (H) 6.52 x 10-7^ m (G) 4.60 x 10^14 s-1^ 3.05 x 10-19^ J (I) 183 kJ mol- (L) 2.31 x 10-7^ m (K) 1.30 x10^15 s-1^ (J) 8.60 x 10-19J 518 kJ/mole
Box A)
(^813 ) 6
c x m (^) x x s υ (^) λ s x m − = = (^) − =
Box B) E = h υ = ( 6.63 x 10 −^34 J s ) x ( 7.18 x 1013 s −^1 )=4.76 x 10 −^20 J
Box C)
1 photon^ x^ J^ x^1 mole photonsx^ photons x^1000 kJJ 28.6kJ mol
− −
Box D)
(^87) 14 1
c x m (^) x x m λ (^) υ s x s − = = (^) − =
Box E) Very much like box B, which see. Box F) Very much like box C, which see.
Box G) E = h υ υ = Eh = 3.05 x 10 −^19 J x 6.63 x 101 − 34 J s=4.60 x 1014 sec−^1
Box H) Very much like box D, which see.
Box I) Very much like box F, which see.
Box J) 518 1 23 1000 8.60 1019 6.02 10 1
kJ (^) x mol (^) x J x J per photon mol x kJ
=^ −
Box K) Very much like G, which see.
Box L) Very much like H and D, which see.
- How many electrons can be placed into the following? a. the n= 2 level _____8_______ b. a 4s orbital _ ___2_______ c. a 3p orbital _____ 2 _______ d. all of the 4d orbitals ____ 10 _______ e. a 1s orbital ___ _ 2 _______ f. the n= 1 level ___ _2_______ g. the ℓ =1 sublevel _____6_______
- Give the electron configurations for the following gaseous ground state atoms
a. 7 N 1s^2 2s^2 2p^3 b. 6 C 1s^2 2s^2 2p^2 c. 15 P 1s^2 2s^2 2p^6 3s^2 3p^3 d. 33 As 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^3 or [Ar] 4s^2 3d^10 4p^3 e. 29 Cu 1s^2 2s^2 2p^6 3s^2 3p^6 4s^1 3d^10 OR [Ar] 4s^1 3d^10 NOTE Special Stability! f. 17 Cl 1s^2 2s^2 2p^6 3s^2 3p^5 or [Ne] 3s^2 3p^5 g. 9 F 1s^2 2s^2 2p^5 h. 12 Mg 1s^2 2s^2 2p^6 3s^2 or [Ne] 3s^2 i. 20 Ca 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 or [Ar] 4s^2
- Draw the orbital diagram for the following gaseous ground state atoms. Note: I included unfilled orbitals, because they are there and it was easier to leave them in when I mad the key. You don’t have to include them in your answers. a. 7 N (^) 1 s 2 s (^2) p^3 s^3 p 4 s^3 d 4 p^5 s
b. 6 C (^) 1 s 2 s (^2) p 3 s (^3) p 4 s (^3) d 4 p 5 s
c. 15 P (^) 1 s 2 s 2 p 3 s (^3) p 4 s (^3) d 4 p 5 s
↑↓ ↑↓ (^) ↑↓ ↑↓ ↑↓ ↑↓ (^) ↑ (^) ↑ ↑ (^)
b. Zn+
(^1 2 2 33 )
3 4 5
s s (^) p s p (^) s
d p s
c. Al+3 1 s 2 s (^2) p 3 s (^3) p 4 s
d. Mg+2 1 s 2 s (^2) p 3 s (^3) p 4 s
e. Ca+2 1 s 2 s (^2) p 3 s (^3) p 4 s 3 d
f. F- 1 s 2 s (^2) p 3 s (^3) p 4 s
g. Cl- 1 s 2 s (^2) p 3 s (^3) p 4 s 3 d
h. S-2 1 s 2 s (^2) p 3 s (^3) p 4 s 3 d
i. O-2 1 s 2 s (^2) p^3 s^3 p^4 s
