Pentaborane B5H9(s) burns vigorously in 02 to give B203(s) and H200). Calculate AHpxn for the combustion of 5.00 mol of BgHg. AH(B203(s)] =-1.273.5 kJ/mol AH{B5H9(s)] = 73.2 kJ/mol AH{(H20()] = -285.8 kJ/mol Multiple Choice -9,090 kJ - 22,700 kJ 1. 45,400 kJ - 8,790 kJ 45,400 kJ Next> LEGO

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