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| www.sapinglearning.com/ibiscms/mod/ibis/view php?id:4272372 ling Learning Jump t reNot Set 89.6/100() 11/6/2012 10:10 PM Print CalculatorPeriodic Table Gradeboo Question 38 of 38 General Chemistry 4th Edtion University Science Books presented by Sapling Leaming The axidation of copper) axide, CuO(s), to copper(l) oxide, Cuo(s), is an exothermic process, kJ 4Cuols =-292.0 Calculate the energy released as heat when 25.73 g of Cujo(s) undergo oxidation at constant pressure Number kJ O Previous ®Gre up & View Solton·Check AnswerNext 8Ext about us careers privacy policy terms of use contact usExplanation / Answer
2Cu2O + O2 -------------------> 4 CuO + 292 kJ / mol
286.18 g Cu2O------------------------> 292 kJ
25.73 g Cu2O ---------------------------> ?? kJ
energy = 292 x 25.73 / 286.18
= 26.25 kJ
energy released = 26.25 kJ
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