What is the oxidation state of the metal in each of the complexes?
a. AgCl₂^–
b. [Cr(H2O)₅Cl]²⁺
c. [Co(NCS)₄]^2–
d. [ZrF₈]^4–
e. [Fe(EDTA)(H₂O)]^–

검증된 단계별 안내

Step 1: Understand the concept of oxidation state. The oxidation state is the charge of an atom if all bonds were ionic. It helps in determining the electron count of the metal in a complex.

Step 2: For each complex, identify the charge of the ligands and the overall charge of the complex. This will help in determining the oxidation state of the metal.

Step 3: For complex a, AgCl₂^–: Chloride (Cl^–) has a charge of -1. With two chlorides, the total charge from ligands is -2. The overall charge of the complex is -1. Use the equation: oxidation state of Ag + (-2) = -1.

Step 4: For complex b, [Cr(H₂O)₅Cl]²⁺: Water (H₂O) is neutral, and chloride (Cl^–) has a charge of -1. The overall charge of the complex is +2. Use the equation: oxidation state of Cr + (-1) = +2.

Step 5: Repeat similar calculations for the remaining complexes: c. [Co(NCS)₄]^2–, d. [ZrF₈]^4–, and e. [Fe(EDTA)(H₂O)]^–, considering the charges of NCS^–, F^–, and EDTA^4– respectively.

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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Oxidation State

The oxidation state, or oxidation number, is a measure of the degree of oxidation of an atom in a chemical compound. It indicates the number of electrons that an atom can gain, lose, or share when forming chemical bonds. Understanding oxidation states is crucial for determining the charge of metal ions in coordination complexes and helps in balancing redox reactions.

Coordination Complexes

Coordination complexes consist of a central metal atom or ion bonded to surrounding molecules or ions, known as ligands. The nature of these ligands and their arrangement around the metal can influence the oxidation state of the metal. Analyzing the overall charge of the complex and the charges of the ligands is essential for calculating the oxidation state of the metal.

Charge Balance

Charge balance is the principle that the total positive charge in a compound must equal the total negative charge. In coordination complexes, this involves summing the oxidation states of the metal and the charges of the ligands to ensure that the overall charge of the complex matches the given charge. This concept is fundamental for determining the oxidation state of the metal in various complexes.

What is the oxidation state of the metal in each of the complexes?a. AgCl2–b. [Cr(H2O)5Cl]2+c. [Co(NCS)4]2–d. [ZrF8]4–e. [Fe(EDTA)(H2O)]–