Question 1

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

Accepted Answer

The complex ion [Co(NH3)5Cl]2+ is named as pentamminechlorocobalt(III) because it contains five ammine (NH3) ligands and one chloro (Cl) ligand coordinated to a cobalt ion. The oxidation state of cobalt is +3, indicated by the Roman numeral III.

Question 2

What is the coordination number around the Co ion in [Co(NH₃)₆][CrF₆]?

Accepted Answer

The coordination number is the number of atoms or ions that surround a central metal ion in a complex. In this complex, the Co ion is bonded to four nitrogen atoms from the ligand NH₃ and two sulfur atoms from the ligand ₆, giving a total of 6 coordinating atoms and a coordination number of 6.

Question 3

What is the coordination number around the Cr ion in [Co(NH₃)₆][CrF₆]?

Accepted Answer

The coordination number is the number of ligands directly bonded to the central metal ion. In this compound, the Cr ion is surrounded by six ligands, which are likely the six S atoms in the [Co(NH₃)₆] complex. Therefore, the coordination number of the Cr ion is 6.

Question 4

What is the coordination number of cobalt in the [Co(NH₃)₄Cl₂]⁺ complex ion?

Accepted Answer

The coordination number is the number of ligand donor atoms bonded to the central metal ion. In [Co(NH3)4Cl2]+, cobalt is bonded to four NH3 molecules and two Cl- ions, making the coordination number 6.

Question 5

The correct name for the compound [Fe(NH₃)₅H₂O](NO₃)₂ is __________

Accepted Answer

The answer of The correct name for the compound [Fe(NH₃)₅H₂O](NO₃)₂...

Question 6

For the coordination compound K₃[ZrF₇],identify,in order,the charge on the complex ion,the oxidation state of the metal,and the coordination number of the metal.

Accepted Answer

The complex ion [ZrF7] has a charge of -3, the oxidation state of Zr is +4, and the coordination number is 7.

Question 7

What is the coordination number of the metal atom in the complex ion in K[Pt(NH₃)Cl₅]?

Accepted Answer

The coordination number is equal to the number of ligands directly bonded to the central metal atom. In this complex ion, there are 6 ligands directly bonded to the Pt atom (NH₃, Cl₅). Hence, the coordination number is 6.

Question 8

For the coordination compound [Zn(NH₃)₄]Cl₂,identify,in order,the charge on the complex ion,the coordination number of the metal,and the number of counter ions present.

Accepted Answer

The answer of For the coordination compound [Zn(NH₃)₄]Cl₂,identify,in order,the charge...

Question 9

How many ions are formed when [Co(NH₃)₅Cl]Cl₂ dissolves in water?

Accepted Answer

The answer of How many ions are formed when [Co(NH₃)₅Cl]Cl₂...

Question 10

What is the coordination number for copper in the compound K₂[CuCl₄]?

Accepted Answer

The coordination number of a metal ion is determined by the number of ligands (ions or molecules) surrounding it. In this compound, copper is surrounded by four chloride ions and two sulfur ions, giving it a coordination number of 4. Therefore, the correct answer is B.

Question 11

For the coordination compound K₃[Fe(CN)₆],identify,in order,the charge on the complex ion,the oxidation state of the metal,and the coordination number of the metal.

Accepted Answer

- The charge on the complex ion can be calculated by adding up the charges on the individual ions: K(+1) + _{3S(-1) + Fe(CN)₆(0) +}(-2) = 3+. Therefore, the charge on the complex ion is 3+. - The oxidation state of Fe can be determined by assuming that the cyanide ligands are -1 and the overall charge of the complex ion is 3+. Since there is only one Fe atom in the complex ion, its oxidation state is +3. - The coordination number of the metal can be found by counting the number of ligands coordinated to the metal. In this case, there are six cyanide ligands, so the coordination number of Fe is 6. Therefore, the correct choice is D.

Question 12

What is the chemical formula of aminetrichloroplatinate(II)?

Accepted Answer

Aminetrichloroplatinate(II) is represented by the chemical formula [Pt(NH2)3Cl2]. The given option E represents the correct formula with NH2 substituted by NH₃ for the sake of clarity, and it also includes the correct charge on the molecule. The other options either have incorrect or overly complicated formulas.

Question 13

The correct name for K₂[CuCl₄] is __________

Accepted Answer

The name includes the complex ion [CuCl₄], which is a tetrachlorocuprate(II) ion. The potassium ions in the compound are written as "dipotassium" since there are two potassium ions present. Therefore, the correct name is potassium tetrachlorocuprate(II).

Question 14

What is the coordination number for [Pt(NH₃)₄]Cl₂?

Accepted Answer

The coordination number in a complex refers to the number of atoms directly bonded to the central metal ion. In the given complex, [Pt(NH3)2Cl2], Pt is the central metal ion, and it is bonded to two ammonia (NH3) molecules and two chloride (Cl) ions, making a total of 4 atoms directly bonded to Pt. Therefore, the coordination number is 4.

Question 15

Which of the following releases the most ions when dissolved in water?

Accepted Answer

Na[Fe(CN)6] releases 7 ions when dissolved in water (Na+, Fe3+, 6 CN-), which is the most among the given options.

Question 16

The correct name for [Co(NH₃)₅Cl]Cl₂ is __________

Accepted Answer

Based on the naming conventions for coordination compounds, the complex includes a central cobalt ion surrounded by five ammine (NH3) ligands and one chloride (Cl) ligand. The oxidation state of the complex is determined by the sum of the charges of the ligands and the overall charge of the complex. In this case, the ammine ligands have a neutral charge, the chloride ligand has a -1 charge, and the overall charge of the complex is -1 (due to the chloride counterion). Therefore, the oxidation state of the central cobalt ion, as well as the corresponding prefix in the name, is +3 (since there are 5 neutral ligands and one -1 ligand, the total charge is +2, so cobalt must be +3). The correct name for this complex is pentamminechlorocobalt(III)chloride.

Question 17

What is the coordination number for Ni(CN)₄^2-?

Accepted Answer

The coordination number is determined by the number of ligand donor atoms bonded to the central metal ion. In Ni(CN)₄²⁻, there are four cyanide (CN⁻) ligands, each donating one pair of electrons to the nickel ion, resulting in a coordination number of 4.

Question 18

The correct name for [Co(NH₃)₆][Cr(CN)₆] is __________

Accepted Answer

The complex ion [Co(NH3)6][Cr(CN)6] has two metal ions, one (Co) in the +3 oxidation state and the other (Cr) in the +3 oxidation state. The correct name for this complex ion is hexamminecobalt(III)hexacyanochromate(III).

Question 19

The correct formula for the complex ion tetracyanoplatinate(II)is __________

Accepted Answer

The answer of The correct formula for the complex ion...

Question 20

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

Accepted Answer

The formula for hexamminecobalt(III)nitrite is [Co(NH3)6](NO2)3.
Breaking this down, we can see that the cobalt ion has a +3 charge, and is coordinated to six ammonia (NH3) molecules. The nitrite ion has a -1 charge, which means we need three of them to balance the charge on the cobalt ion.
In the given options, option C has the correct formula with the correct charges on the ions.

Quiz 16: Coordination Compounds-The Colorful Chemistry of Metals

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

What is the coordination number around the Co ion in [Co(NH₃) ₆][CrF₆]?

What is the coordination number around the Cr ion in [Co(NH₃) ₆][CrF₆]?

What is the coordination number of cobalt in the [Co(NH₃) ₄Cl₂]⁺ complex ion?

The correct name for the compound [Fe(NH₃) ₅H₂O](NO₃) ₂ is __________

For the coordination compound K₃[ZrF₇],identify,in order,the charge on the complex ion,the oxidation state of the metal,and the coordination number of the metal.

What is the coordination number of the metal atom in the complex ion in K[Pt(NH₃) Cl₅]?

For the coordination compound [Zn(NH₃) ₄]Cl₂,identify,in order,the charge on the complex ion,the coordination number of the metal,and the number of counter ions present.

How many ions are formed when [Co(NH₃) ₅Cl]Cl₂ dissolves in water?

What is the coordination number for copper in the compound K₂[CuCl₄]?

For the coordination compound K₃[Fe(CN) ₆],identify,in order,the charge on the complex ion,the oxidation state of the metal,and the coordination number of the metal.

What is the chemical formula of aminetrichloroplatinate(II) ?

The correct name for K₂[CuCl₄] is __________

What is the coordination number for [Pt(NH₃) ₄]Cl₂?

Which of the following releases the most ions when dissolved in water?

The correct name for [Co(NH₃) ₅Cl]Cl₂ is __________

What is the coordination number for Ni(CN) ₄^2-?

The correct name for [Co(NH₃) ₆][Cr(CN) ₆] is __________

The correct formula for the complex ion tetracyanoplatinate(II) is __________

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

Quiz 16: Coordination Compounds-The Colorful Chemistry of Metals

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

What is the coordination number around the Co ion in [Co(NH3) 6][CrF6]?

What is the coordination number around the Cr ion in [Co(NH3) 6][CrF6]?

What is the coordination number of cobalt in the [Co(NH3) 4Cl2]+ complex ion?

The correct name for the compound [Fe(NH3) 5H2O](NO3) 2 is __________

For the coordination compound K3[ZrF7],identify,in order,the charge on the complex ion,the oxidation state of the metal,and the coordination number of the metal.

What is the coordination number of the metal atom in the complex ion in K[Pt(NH3) Cl5]?

For the coordination compound [Zn(NH3) 4]Cl2,identify,in order,the charge on the complex ion,the coordination number of the metal,and the number of counter ions present.

How many ions are formed when [Co(NH3) 5Cl]Cl2 dissolves in water?

What is the coordination number for copper in the compound K2[CuCl4]?

For the coordination compound K3[Fe(CN) 6],identify,in order,the charge on the complex ion,the oxidation state of the metal,and the coordination number of the metal.

What is the chemical formula of aminetrichloroplatinate(II) ?

The correct name for K2[CuCl4] is __________

What is the coordination number for [Pt(NH3) 4]Cl2?

Which of the following releases the most ions when dissolved in water?

The correct name for [Co(NH3) 5Cl]Cl2 is __________

What is the coordination number for Ni(CN) 42-?

The correct name for [Co(NH3) 6][Cr(CN) 6] is __________

The correct formula for the complex ion tetracyanoplatinate(II) is __________

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

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

What is the coordination number around the Co ion in [Co(NH₃) ₆][CrF₆]?

What is the coordination number around the Cr ion in [Co(NH₃) ₆][CrF₆]?

What is the coordination number of cobalt in the [Co(NH₃) ₄Cl₂]⁺ complex ion?

The correct name for the compound [Fe(NH₃) ₅H₂O](NO₃) ₂ is __________

For the coordination compound K₃[ZrF₇],identify,in order,the charge on the complex ion,the oxidation state of the metal,and the coordination number of the metal.

What is the coordination number of the metal atom in the complex ion in K[Pt(NH₃) Cl₅]?

For the coordination compound [Zn(NH₃) ₄]Cl₂,identify,in order,the charge on the complex ion,the coordination number of the metal,and the number of counter ions present.

How many ions are formed when [Co(NH₃) ₅Cl]Cl₂ dissolves in water?

What is the coordination number for copper in the compound K₂[CuCl₄]?

For the coordination compound K₃[Fe(CN) ₆],identify,in order,the charge on the complex ion,the oxidation state of the metal,and the coordination number of the metal.

The correct name for K₂[CuCl₄] is __________

What is the coordination number for [Pt(NH₃) ₄]Cl₂?

The correct name for [Co(NH₃) ₅Cl]Cl₂ is __________

What is the coordination number for Ni(CN) ₄^2-?

The correct name for [Co(NH₃) ₆][Cr(CN) ₆] is __________