The correct electronic configuration for manganese in Mn0, is

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Answer Q10, 11, 12

equilibrium the partial pressure of N:O was
found to be 0.15 atmospheres. If Kp for the
reaction NO.(g)=2NO:g)
is 48 atmospheres, the partial pressure of NO, in
atmospheres in the equilibrium mixture at 100°C
calcium chloride, CaCl, in 100 cm' of solution
(RAM: Ca-40; CI-35.5)
SO
LA]0 20 (B] 0 02 (CJ0.10 [D] 0.01
10.
The atomic number of manganese is 25
correct electronic configuration Tor
manganese in Mn0, is
(A][Ac]3d'4s* [B] [Ar]3d²4s"
[C][Ar3d*4s' [D][Ar]3d°4s°
Given the total bond enthalpy terms in kJ
mol' for the following substances.
Cyclohexene =+6471
Hydrogen =+436
Cyclohexane = +7032
What would be the enthalpy change for the
The
is
Na
LA] 2.68 (B] 7.20 [C] 0.56 (D] 1.08
The halogen molecule with the lowest
bond dissociation enthalpy is likely to he
[A] F2 [B] Cl; [C] Br2 [D] I:
17.
16.
1.
Na
A positive deviation from Raoult's law
could be obtained from a solution of
(A] Methanol and water [B] Ethanol and water
[C] Methanoic acid and water [D] Nitric acd
and water
Na
reaction?
QUESTIONS: 18-31
DIRECTIONS: Each group al ne quIesons
consists of four lettered headings followed by list
of numbered questions. for ench numbered
question select the heading which is most closely
related to it. Each heading may be used once.
So
ch
|A] -997 [B] -125 (C +125 (D] +997
Markownikoff adition involves
JAL Unsymnetrical alkenes and
unsymnmetrical reagents
[B] Unsymmetrical reagents
[C]. Unsyminetrical alkenes
[DJ. SymmetriIcal alkenes and unsymmetrical
[B
IC
[D
Se
23
[A
24
12.
more than once or not at all
Question 18 -22 concern the following
organic compounds
OH
A C -C
reagents
25
CH,
Given the following data:
Cuan) +e= Cu E° = +0.15V
Cu + 2e Cu E = +0.34V
From the data above it could be deduced the
fAJ The e m fof the cell formed by the tw
electrodes is-019 V
[B]. The cell diagram is
Cus/Cuag) Cuaa) , Cuan)/Pt
The mass of Cu is decreasing as the cell
13.
HO
26
( C-c-C-0-CH,
-C,Hs
Select from A to D the compound which
Forms methamol on watming with
18.
concentrated sulphuric acid
(A) [B] [C] [D]
27
he
ch
19.
Is optically active
[A] [B] [C] (D)
[C).
operate
[D]. Cu (ay) will disproportionate in aqueous
20.
On oxidation forms a ketone
[A] [B] [C] [D]
solution
21.
Reduces silver ions in ammoniacal siiver
The concentration in möldm when 5.21
g of sulphamic acid. NH2SO;H is dissolved in
250 cm' of sulution is (RAM: N=14, S-32,
O=16 H=1
LAJ U.U [DJU.44 |JU.IU [DJ U.21
15.
14.
nitrate
(A] [B] [C] [D]
22.
ith potassinm inlid. seslatin l lim
Forms a yellow precipitate on reaction
chlorate(1) (sodium nypocntorite)
One mole of N2O4 was allowed to
[A] [B] [C] [D]
dissociate and reach equilibrium at 400°C. Al
29
Transcribed Image Text:equilibrium the partial pressure of N:O was found to be 0.15 atmospheres. If Kp for the reaction NO.(g)=2NO:g) is 48 atmospheres, the partial pressure of NO, in atmospheres in the equilibrium mixture at 100°C calcium chloride, CaCl, in 100 cm' of solution (RAM: Ca-40; CI-35.5) SO LA]0 20 (B] 0 02 (CJ0.10 [D] 0.01 10. The atomic number of manganese is 25 correct electronic configuration Tor manganese in Mn0, is (A][Ac]3d'4s* [B] [Ar]3d²4s" [C][Ar3d*4s' [D][Ar]3d°4s° Given the total bond enthalpy terms in kJ mol' for the following substances. Cyclohexene =+6471 Hydrogen =+436 Cyclohexane = +7032 What would be the enthalpy change for the The is Na LA] 2.68 (B] 7.20 [C] 0.56 (D] 1.08 The halogen molecule with the lowest bond dissociation enthalpy is likely to he [A] F2 [B] Cl; [C] Br2 [D] I: 17. 16. 1. Na A positive deviation from Raoult's law could be obtained from a solution of (A] Methanol and water [B] Ethanol and water [C] Methanoic acid and water [D] Nitric acd and water Na reaction? QUESTIONS: 18-31 DIRECTIONS: Each group al ne quIesons consists of four lettered headings followed by list of numbered questions. for ench numbered question select the heading which is most closely related to it. Each heading may be used once. So ch |A] -997 [B] -125 (C +125 (D] +997 Markownikoff adition involves JAL Unsymnetrical alkenes and unsymnmetrical reagents [B] Unsymmetrical reagents [C]. Unsyminetrical alkenes [DJ. SymmetriIcal alkenes and unsymmetrical [B IC [D Se 23 [A 24 12. more than once or not at all Question 18 -22 concern the following organic compounds OH A C -C reagents 25 CH, Given the following data: Cuan) +e= Cu E° = +0.15V Cu + 2e Cu E = +0.34V From the data above it could be deduced the fAJ The e m fof the cell formed by the tw electrodes is-019 V [B]. The cell diagram is Cus/Cuag) Cuaa) , Cuan)/Pt The mass of Cu is decreasing as the cell 13. HO 26 ( C-c-C-0-CH, -C,Hs Select from A to D the compound which Forms methamol on watming with 18. concentrated sulphuric acid (A) [B] [C] [D] 27 he ch 19. Is optically active [A] [B] [C] (D) [C). operate [D]. Cu (ay) will disproportionate in aqueous 20. On oxidation forms a ketone [A] [B] [C] [D] solution 21. Reduces silver ions in ammoniacal siiver The concentration in möldm when 5.21 g of sulphamic acid. NH2SO;H is dissolved in 250 cm' of sulution is (RAM: N=14, S-32, O=16 H=1 LAJ U.U [DJU.44 |JU.IU [DJ U.21 15. 14. nitrate (A] [B] [C] [D] 22. ith potassinm inlid. seslatin l lim Forms a yellow precipitate on reaction chlorate(1) (sodium nypocntorite) One mole of N2O4 was allowed to [A] [B] [C] [D] dissociate and reach equilibrium at 400°C. Al 29
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