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(25) With respect to the following unbalanced redox equation that takes place in basic solution: MnO₂ (s) + V² (aq) →VO, (aq) + Mn² (aq) The stoichiometric coefficient on VO; (aq) will be: (A) 1 (B) 2 (C) 4 (D) 6 (E) 12

(25) With respect to the following unbalanced redox equation that takes place in basic solution: MnO₂ (s) + V² (aq) →VO, (aq) + Mn² (aq) The stoichiometric coefficient on VO; (aq) will be: (A) 1 (B) 2 (C) 4 (D) 6 (E) 12

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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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**Redox Equations and Nuclear Reactions** --- **Question 25** With respect to the following unbalanced redox equation that takes place in a basic solution: \[ \text{MnO}_2 (s) + \text{V}^{2+} (aq) \rightarrow \text{VO}_3^{-} (aq) + \text{Mn}^{2+} (aq) \] The stoichiometric coefficient on \(\text{VO}_3^{-} (aq)\) will be: - (A) 1 - (B) 2 - (C) 4 - (D) 6 - (E) 12 --- **Question 26** When plutonium-239 is bombarded with a neutron, it produces xenon-137, zirconium-95, and releases eight neutrons. This fission event results in a mass defect of 1.93956 amu. How much energy is produced when 1.737 x 10⁴ g of plutonium-239 (above the critical mass) are bombarded with neutrons? - (A) 7.629 x 10¹² J - (B) 4.377 x 10²⁵ J - (C) 3.221 x 10¹⁶ J - (D) 3.028 x 10²⁸ J - (E) 1.267 x 10¹⁶ J --- In Question 25, the given problem focuses on finding the stoichiometric coefficient for VO₃⁻ (aq) in an unbalanced redox reaction equation. The solution involves balancing the reaction in a basic medium. In Question 26, the problem addresses a nuclear fission reaction involving plutonium-239. To solve it, one must consider the mass defect and use Einstein’s equation \(E = mc^2\) to find the energy produced during the fission process. The mass defect is provided in atomic mass units (amu), and the problem requires converting this to energy in joules.
Transcribed Image Text:**Redox Equations and Nuclear Reactions** --- **Question 25** With respect to the following unbalanced redox equation that takes place in a basic solution: \[ \text{MnO}_2 (s) + \text{V}^{2+} (aq) \rightarrow \text{VO}_3^{-} (aq) + \text{Mn}^{2+} (aq) \] The stoichiometric coefficient on \(\text{VO}_3^{-} (aq)\) will be: - (A) 1 - (B) 2 - (C) 4 - (D) 6 - (E) 12 --- **Question 26** When plutonium-239 is bombarded with a neutron, it produces xenon-137, zirconium-95, and releases eight neutrons. This fission event results in a mass defect of 1.93956 amu. How much energy is produced when 1.737 x 10⁴ g of plutonium-239 (above the critical mass) are bombarded with neutrons? - (A) 7.629 x 10¹² J - (B) 4.377 x 10²⁵ J - (C) 3.221 x 10¹⁶ J - (D) 3.028 x 10²⁸ J - (E) 1.267 x 10¹⁶ J --- In Question 25, the given problem focuses on finding the stoichiometric coefficient for VO₃⁻ (aq) in an unbalanced redox reaction equation. The solution involves balancing the reaction in a basic medium. In Question 26, the problem addresses a nuclear fission reaction involving plutonium-239. To solve it, one must consider the mass defect and use Einstein’s equation \(E = mc^2\) to find the energy produced during the fission process. The mass defect is provided in atomic mass units (amu), and the problem requires converting this to energy in joules.
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