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Statistics homework help

Please help with those questions and steps Attachment 1Attachment 2Attachment 3Attachment 4A scientist measures the standard enthalpy change for the following reaction to be 75.2 kJ :2HBr(g)->H2(g) + Br2(1)Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of HBr(g) iskJ/mol.


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