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When in danger, bombardier beetles can fire a hot, toxic mixture of chemicals at their attacker. This mixture contains quinone, C6H4O2, a compound that is formed by the reaction of hydroquinone, CsH4(OH)2, with hydrogen peroxide, H2O2. The equation for the overall reaction is: CH,(OH),g) + H,O -> 2(aq) CHO + 2H,0 2(aq) 2(aq) Use the following data to calculate the enthalpy change, in kJ mol-1, for the above reaction. CH(OH)g) eno H + CHOag) + H, -> ΔΗ- = + 177-4 kJ mol- 9. 2(g) H,Oaq) AH = -191-2 kJ mol-! -> 2(g) H ½0, AH = -241-8 kJ mol- %3D 2(g) 2(g) (8), H,O → H,O AH = -43-8 kJ mol (g)

When in danger, bombardier beetles can fire a hot, toxic mixture of chemicals at their attacker. This mixture contains quinone, C6H4O2, a compound that is formed by the reaction of hydroquinone, CsH4(OH)2, with hydrogen peroxide, H2O2. The equation for the overall reaction is: CH,(OH),g) + H,O -> 2(aq) CHO + 2H,0 2(aq) 2(aq) Use the following data to calculate the enthalpy change, in kJ mol-1, for the above reaction. CH(OH)g) eno H + CHOag) + H, -> ΔΗ- = + 177-4 kJ mol- 9. 2(g) H,Oaq) AH = -191-2 kJ mol-! -> 2(g) H ½0, AH = -241-8 kJ mol- %3D 2(g) 2(g) (8), H,O → H,O AH = -43-8 kJ mol (g)

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter18: Electrochemistry
Section: Chapter Questions
Problem 18.60QE
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When in danger, bombardier beetles can fire a hot, toxic mixture of chemicals at their attacker. This mixture contains quinone, C6H4O2, a compound that is formed by the reaction of hydroquinone, C6H4(OH)2, with hydrogen peroxide, H2O2. The equation for the overall reaction is: → CHO, CH (OH), + H,O, -> 2(aq) + 2H,0, 2(aq) 2(aq) () ment HCI Use the following data to calculate the enthalpy change, in kJ mol-1, for the above reaction. en AH = + 177.4 kJ mol- g bevloaaib AH = -191-2kJ mol- CH (OH), CHOa4) + H. 2(g) 2( aq) 2( aq) H,O Dios H -> 2(aq) -> 20 218) → H,O AH = -241-8 kJ mol! + ½0, 2(g) H¸O → H,O) AH = -43-8 kJ mol!
Transcribed Image Text:When in danger, bombardier beetles can fire a hot, toxic mixture of chemicals at their attacker. This mixture contains quinone, C6H4O2, a compound that is formed by the reaction of hydroquinone, C6H4(OH)2, with hydrogen peroxide, H2O2. The equation for the overall reaction is: → CHO, CH (OH), + H,O, -> 2(aq) + 2H,0, 2(aq) 2(aq) () ment HCI Use the following data to calculate the enthalpy change, in kJ mol-1, for the above reaction. en AH = + 177.4 kJ mol- g bevloaaib AH = -191-2kJ mol- CH (OH), CHOa4) + H. 2(g) 2( aq) 2( aq) H,O Dios H -> 2(aq) -> 20 218) → H,O AH = -241-8 kJ mol! + ½0, 2(g) H¸O → H,O) AH = -43-8 kJ mol!
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