Question 1

Which ligand below is not correctly named?

Accepted Answer

A)   H2O, hydro
B)   NH3, ammine
C)   CN-, cyano
D)   CO, carbonyl
E)   OH-, hydroxoF) A) and B)
G) A) and D)

Question 2

How many unpaired electrons are there in a strong-field octahedral Fe3+ complex?

Accepted Answer

A)   0
B)   1
C)   2
D)   4
E)   5F) A) and D)
G) B) and D)

Question 3

When Ni(NH3) 6Cl2 dissolves in water, which of the following species form the inner coordination sphere around the Ni2+ ions?

Accepted Answer

A)   Other Ni2+ ions
B)   Cl- ions
C)   H2O molecules with O closest to the Ni2+ ions
D)   H2O molecules with H closest to the Ni2+ ions
E)   NH3F) A) and E)
G) B) and E)

Question 4

The correct name for the complex ion [Co(NH3) 5Cl]2+ is ________

Accepted Answer

A)   pentaamminechlorocobalt(III) .
B)   pentaamminechlorocobalt(II) .
C)   chloropentaamminecobalt(III) .
D)   pentaamminechlorocobaltate(III) .
E)   pentaamminechlorocobalt.F) All of the above
G) C) and E)

Question 5

Which of the following ligands will cause the smallest crystal field splitting of the d orbitals in an octahedral complex?

Accepted Answer

A)   H2O
B)   Br -
C)   NH3
D)   CN-
E)   I-F) A) and E)
G) A) and C)

Question 6

What is the molar concentration of Ag+(aq)  in a 1.00 M solution of Ag(NH3) 2+ with no excess ammonia?
Given: Kf = 1.70 * 107 for Ag(NH3) 2+.

Accepted Answer

A)   2.45 * 10-3 M
B)   3.09 *10-3 M
C)   2.42 * 10-4 M
D)   1.47 * 10-8 M
E)   1.70 *10-8 MF) B) and C)
G) B) and D)

Question 7

The coordination number for Pt(NH3) 42+ is ________

Accepted Answer

A)   2.
B)   3.
C)   6.
D)   4.
E)   5.F) A) and D)
G) None of the above

Question 8

Which atoms on EDTA bond to metal ions?

Accepted Answer

A)   carbon and oxygen
B)   carbon and nitrogen
C)   oxygen and nitrogen
D)   nitrogen and hydrogen
E)   oxygen and hydrogenF) B) and E)
G) A) and B)

Question 9

What is the correct formula for hexamminecobalt(III)  nitrite?

Accepted Answer

A)   [Co(NH3) 6](NO3) 3
B)   Co(NH3) 6(NO2) 3
C)   [Co(NH3) 6](NO2) 3
D)   [Co(NH3) 6](NO2) 2
E)   [Co(NH3) 6](NO3) 2F) None of the above
G) B) and E)

Question 10

Which of the following species is a Lewis base?

Accepted Answer

A)   H+
B)   Cs+
C)   NF3
D)   NF4+
E)   NH4+F) B) and D)
G) B) and E)

Question 11

What determines whether a transition metal ion is in a high-spin or a low-spin electron configuration?

Accepted Answer

The magnitude of the crystal f...

Question 12

What is the shape of Zn(OH) 42-?

Accepted Answer

A)   triangular pyramid
B)   tetrahedral
C)   octahedral
D)   square pyramid
E)   T-shapedF) A) and B)
G) A) and C)

Question 13

A ligand is best described as ________

Accepted Answer

A)   a Lewis acid.
B)   a Lewis base.
C)   a Brønsted-Lowry acid.
D)   a Brønsted-Lowry base.
E)   an ion.F) A) and E)
G) A) and B)

Question 14

Which statement A-D regarding isomers in transition metal compounds is not correct?

Accepted Answer

A)   Structural isomers are compounds that have the same chemical formula but different arrangements of atoms in bonds.
B)   Stereoisomers are compounds with the same chemical formula and bonding pattern, but the orientation of the atoms or groups in space differs.
C)   Enantiomers are structural isomers that are mirror images but are not superimposable.
D)   A tetrahedral complex ion with four different ligands is chiral.
E)   Statements A-D are all correct.F) B) and E)
G) D) and E)

Question 15

Identify the Lewis base in the following reaction:
PH3(g)  + H+(g)   →\rightarrow→ PH4+(g)

Accepted Answer

A)   PH3
B)   H+
C)   PH4+
D)   None of these is a base.
E)   All of these are bases. F) All of the above
G) C) and E)

Question 16

For the reaction:
Fe(H2O) 63+ + H2O(l)   ↔\leftrightarrow↔ Fe(H2O) 5(OH) 2+ + H3O+(aq) 
Fe(H2O) 63+ is a(n)  ________ and water is a(n)  ________.

Accepted Answer

A)   acid; base
B)   base; acid
C)   acid; catalyst
D)   catalyst; base
E)   Lewis base; Lewis acid F) A) and B)
G) None of the above

Question 17

Which statement A-D regarding transition metal coordination compounds is not correct?

Accepted Answer

A)   A coordination compound is formed when a Lewis acid reacts with a Lewis base.
B)   Many, but not all, coordination compounds consist of a complex ion and some number of counter ions.
C)   The Lewis bases attached to the metal ion are called ligands.
D)   A coordination compound has no net electrical charge.
E)   Statements A-D are all correct.F) B) and C)
G) None of the above

Question 18

A Lewis acid is ________

Accepted Answer

A)   a proton donor.
B)   a proton acceptor.
C)   an electron-pair donor.
D)   an electron-pair acceptor.
E)   never viewed also as a Brønsted-Lowry acid.F) B) and C)
G) A) and E)

Question 19

How many unpaired electrons are there in the octahedral complex ion, Mn(CN) 64-?

Accepted Answer

A)   1
B)   2
C)   4
D)   5
E)   3F) A) and B)
G) C) and D)

Question 20

A Lewis base is any species capable of ________ an electron pair.

Accepted Answer

A)   accepting
B)   donating
C)   creating
D)   neutralizing
E)   gainingF) A) and D)
G) B) and D)

Exam 17: Metal Ions: Colorful and Essential

What is the molar concentration of Ag+(aq) in a 1.00 M solution of Ag(NH3) 2+ with no excess ammonia? Given: Kf = 1.70 * 107 for Ag(NH3) 2+.

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Which statement A-D regarding transition metal coordination compounds is not correct?

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What is the shape of Zn(OH) 42-?

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A Lewis base is any species capable of ________ an electron pair.

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A Lewis acid is ________

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Which statement A-D regarding isomers in transition metal compounds is not correct?

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What determines whether a transition metal ion is in a high-spin or a low-spin electron configuration?

Correct AnswerverifiedThe magnitude of the crystal f...View AnswerShow Answer

When Ni(NH3) 6Cl2 dissolves in water, which of the following species form the inner coordination sphere around the Ni2+ ions?

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The correct name for the complex ion [Co(NH3) 5Cl]2+ is ________

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How many unpaired electrons are there in a strong-field octahedral Fe3+ complex?

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Which of the following species is a Lewis base?

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For the reaction: Fe(H2O) 63+ + H2O(l) ↔\leftrightarrow↔ Fe(H2O) 5(OH) 2+ + H3O+(aq) Fe(H2O) 63+ is a(n) ________ and water is a(n) ________.

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Which of the following ligands will cause the smallest crystal field splitting of the d orbitals in an octahedral complex?

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Identify the Lewis base in the following reaction: PH3(g) + H+(g) →\rightarrow→ PH4+(g)

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The coordination number for Pt(NH3) 42+ is ________

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What is the correct formula for hexamminecobalt(III) nitrite?

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How many unpaired electrons are there in the octahedral complex ion, Mn(CN) 64-?

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Which atoms on EDTA bond to metal ions?

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A ligand is best described as ________

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Which ligand below is not correctly named?

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What is the molar concentration of Ag⁺(aq) in a 1.00 M solution of Ag(NH₃) ₂⁺with no excess ammonia? Given: K_f = 1.70 * 10⁷ for Ag(NH₃) ₂⁺.

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What is the shape of Zn(OH) ₄²^-?

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The magnitude of the crystal f...
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When Ni(NH₃) ₆Cl₂ dissolves in water, which of the following species form the inner coordination sphere around the Ni²⁺ ions?

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The correct name for the complex ion [Co(NH₃) ₅Cl]²⁺ is ________

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How many unpaired electrons are there in a strong-field octahedral Fe³⁺ complex?

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For the reaction: Fe(H₂O) ₆³⁺ + H₂O(l) $\leftrightarrow$ Fe(H₂O) ₅(OH) ²⁺ + H₃O⁺(aq) Fe(H₂O) ₆³⁺ is a(n) and water is a(n) .

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Identify the Lewis base in the following reaction: PH₃(g) + H⁺(g) $\rightarrow$ PH₄⁺(g)

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The coordination number for Pt(NH₃) ₄²⁺ is ________

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How many unpaired electrons are there in the octahedral complex ion, Mn(CN) ₆⁴^-?

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