E Sam Houston State Uni Chrgg Study | Guided Solut+ www.saplingle ibis/viewphp?i
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E Sam Houston State Uni Chrgg Study | Guided Solut+ www.saplingle ibis/viewphp?id-4743D62 Imported from Intern TD Auto Finar: e-Ac Center icini Frar în Amerna" Mc TXU MMA wate' DTV Webmail Main SHSU pad hack -sapling Geretal Butany Exam Fayment Nelnet Sapling Learning rnacmillan learring Jump to.. Janna Jaynes Question 8 of B Available F: 3/8,2018 11:00 PM Due Date: Late submissions: Allowed with 50% of the Sapling Learning Map 3/22/2018 11:00 PM ven the following reactions, where X represents a generic metal or metalloid, points possible deducted per day until 03/24/2018 11:00 PM H,--241.8 kJ Points Possible: 2 11, = + 411.9 kJ Grade Category: Defaul Description: Policies: HCI ,--92.3 kJ fall 17 1,--509.3 kJ You can check your answers. You can keep trying to answer each question until you get it right or give up. You can view solutions after due dates for all students in the class have passed. You lose 5% of the points available to each answer in your question for each incorrect atternpt at that answer For multiple-choice questions H,--44.0 kJ what is the enthalpy, , for this reaction? Number XCl s) + 2H - -855.4 k.J There is a hint available View the hint bottom divider divider bar again to hide the hint. depends on the number of choices available. on the on the eTextbook Close Previous Q)Check Answer Next Exit Hint 3/22/2018Explanation / Answer
Lets number the reaction as 1, 2, 3, 4, 5, 6 from top to bottom
required reaction should be written in terms of other reaction
This is Hess Law
required reaction can be written as:
reaction 6 = -2 * (reaction 1) -1 * (reaction 2) +4 * (reaction 3) +1 * (reaction 4) -2 * (reaction 5)
So, Ho rxn for required reaction will be:
Ho rxn = -2 * Ho rxn(reaction 1) -1 * Ho rxn(reaction 2) +4 * Ho rxn(reaction 3) +1 * Ho rxn(reaction 4) -2 * Ho rxn(reaction 5)
= -2 * (-241.8) -1 * (411.9) +4 * (-92.3) +1 * (-509.3) -2 * (-44.0)
= -718.8 KJ
Answer: -718.8 KJ
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