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A scientist measures the standard enthalpy change for the following reaction to be -77.5 kJ: 2HBr(g)...

A scientist measures the standard enthalpy change for the following reaction to be -77.5 kJ: 2HBr(g) + Cl2(g) 2HCl(g) + Br2(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of HBr(g) is kJ/mol.

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HOY チチ,一 y石 30.gl 빱 (HNr) ΔΗc Z

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