Explanation Given: Heat of formation Δ H f ∘ of rhodochrosite ( M n C O 3 ) is − 894.1 kJ/mol . Heat of formation Δ H f ∘ of carbon dioxide ( C O 2 ) is − 393.5 kJ/mol . Heat of formation Δ H f ∘ of manganese dioxide ( M n O 2 ) is − 520 kJ/mol . Heat of formation Δ H f ∘ of oxygen ( O 2 ) is 0 kJ/mol . Explanation: Given is the calcination of rhodochrosite. The reaction is as follows: M n C O 3 ( s ) + 1 2 O 2 ( g ) → Δ M n O 2 ( s ) + C O 2 ( g ) The heat of reaction for the above reaction can be calculated as Δ H r x n 0 = ∑ n p Δ H f ∘ ( p r o d u c t s ) − ∑ n r Δ H f ∘ ( reactants) Here, Δ H r 0 is the standard heat of formation for the reactants or the products, n p is the stoichiometric coefficient of the product from the balanced equation, and n r is the stoichiometric coefficient of the reactant from the balanced equation

Masteringchemistry With Pearson Etext -- Valuepack Access Card -- For Principles Of Chemistry: A Molecular Approach

3rd Edition

ISBN: 9780133890686

Author: Tro

Publisher: PEARSON

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Refining of Crude Metal

Metallurgy could be defined as a technique by which metals can be extracted in their pure nature. Extractive metallurgy directs with the route of eradicating the valuable metals from ores and purifying the extracted metals to pure nature. In hydrometallu…

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Chapter 23, Problem 45E

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To determine: Heat of reaction (ΔH∘rxn).

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Chapter 23, Problem 44E

Chapter 23, Problem 46E

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Chapter 23 Solutions

Masteringchemistry With Pearson Etext -- Valuepack Access Card -- For Principles Of Chemistry: A Molecular Approach

Ch. 23 - Prob. 1SAQ Ch. 23 - Prob. 2SAQ Ch. 23 - Prob. 3SAQ Ch. 23 - Prob. 4SAQ Ch. 23 - Prob. 5SAQ Ch. 23 - Prob. 6SAQ Ch. 23 - Prob. 7SAQ Ch. 23 - Prob. 8SAQ Ch. 23 - Prob. 9SAQ Ch. 23 - Prob. 10SAQ

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