taborane BgHg(s) burns vigorously in 02 to give B2031s) and H20(). Calculate AHxn for the combustion of 5.00 mo (B203(s) = -1,273.5 kJ/mol (BSH9(s)) = 73.2 kJimol (H20(0] = -285.8 kJ/mol Multiple Choice 45,400 kJ -45,400 kJ - 22700 kJ - 8790 kJ - 9,090 kJ

Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Andrei Straumanis
ChapterL2: Mass Spectrometry
Section: Chapter Questions
Problem 20CTQ
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Pentaborane BgHg(s) burns vigorously in O2 to give B203(s) and H2O(). Calculate AHxn for the combustion of 5.00 mol of B5H9.
AH'{B203(s) = -1,273.5 kJ/mol
AH(B5H9(s)) = 73.2 kJimol
AH'(H20(0) =-285.8 kJ/mol
Multiple Choice
45,400 kJ
- 45,400 kJ
- 22,700 kJ
- 8,790 kJ
- 9,090 kJ
Transcribed Image Text:Pentaborane BgHg(s) burns vigorously in O2 to give B203(s) and H2O(). Calculate AHxn for the combustion of 5.00 mol of B5H9. AH'{B203(s) = -1,273.5 kJ/mol AH(B5H9(s)) = 73.2 kJimol AH'(H20(0) =-285.8 kJ/mol Multiple Choice 45,400 kJ - 45,400 kJ - 22,700 kJ - 8,790 kJ - 9,090 kJ
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