.53A ### Describing Oxidation-Reduction Reactions#### 4.51**In the following reactions, label the oxidizing agent and the reducing agent.**(a) \( P_4(s) + 5O_2(g) \rightarrow P_4O_{10}(s) \)(b) \( Co(s) + Cl_2(g) \rightarrow CoCl_2(s) \)#### 4.53**In the following reactions, label the oxidizing agent and the reducing agent.**(a) \( 2Al(s) + 3F_2(g) \rightarrow 2AlF_3(s) \)(b) \( Hg^{2+}(aq) + NO_2^{-}(aq) + H_2O(l) \rightarrow Hg(l) + 2H^{+}(aq) + NO_3^{-}(aq) \)### Balancing Oxidation-Reduction Reactions#### 4.55**Balance the following oxidation-reduction reactions by the half-reaction method.**(a) \( CuCl_2(aq) + Al(s) \rightarrow AlCl_3(aq) + Cu(s) \)(b) \( Cr^{3+}(aq) + Zn(s) \rightarrow Cr(s) + Zn^{2+}(aq) \)### Molarity#### 4.57A sample of 0.0341 mol of iron(III) chloride, \(FeCl_3\), was dissolved in water to give 25.0 mL of solution. What is the molarity of the solution?#### 4.59An aqueous solution is made from 0.798 g of potassium permanganate, \(KMnO_4\). If the volume of solution is 50.0 mL, what is the molarity of \(KMnO_4\) in the solution?

[4.53] (a .) 2 Al (s) + 3 F2 (g) ---> 2 AlF3(s) Oxidation : Al ---> AlF3 + 3e- 0 +3…

Answered: (b) Co(s) 4.53 In the following…

(b) Co(s) 4.53 In the following reactions, label the oxidizing agent and the reducing agent. (a) 2AI(s) + 3F,(g) 2AIF,(s)

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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Concept explainers

Group 15 elements

The elements of group 15 are phosphorus, nitrogen, bismuth antimony, and arsenic. The most abundant element which is present in the air is nitrogen and the percentage of nitrogen present in the air is 78%. In the free state, the elemental nitrogen is present as diatomic gas (N2). In the organic matter obtained from plants and animals, phosphorus is the dominant element present. In nucleic acids, phosphate groups are present. Phosphates are also found in teeth and bones. The other elements arsenic, bismuth, and antimony are found as sulfides. Arsenopyrite, bismuth glance, and stibnite are examples of sulfides of arsenic, bismuth, and antimony respectively.

Question

.53 A

### Describing Oxidation-Reduction Reactions

#### 4.51
**In the following reactions, label the oxidizing agent and the reducing agent.**
(a) \( P_4(s) + 5O_2(g) \rightarrow P_4O_{10}(s) \)

(b) \( Co(s) + Cl_2(g) \rightarrow CoCl_2(s) \)

#### 4.53
**In the following reactions, label the oxidizing agent and the reducing agent.**
(a) \( 2Al(s) + 3F_2(g) \rightarrow 2AlF_3(s) \)

(b) \( Hg^{2+}(aq) + NO_2^{-}(aq) + H_2O(l) \rightarrow Hg(l) + 2H^{+}(aq) + NO_3^{-}(aq) \)

### Balancing Oxidation-Reduction Reactions

#### 4.55
**Balance the following oxidation-reduction reactions by the half-reaction method.**
(a) \( CuCl_2(aq) + Al(s) \rightarrow AlCl_3(aq) + Cu(s) \)

(b) \( Cr^{3+}(aq) + Zn(s) \rightarrow Cr(s) + Zn^{2+}(aq) \)

### Molarity

#### 4.57
A sample of 0.0341 mol of iron(III) chloride, \(FeCl_3\), was dissolved in water to give 25.0 mL of solution. What is the molarity of the solution?

#### 4.59
An aqueous solution is made from 0.798 g of potassium permanganate, \(KMnO_4\). If the volume of solution is 50.0 mL, what is the molarity of \(KMnO_4\) in the solution?

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