Consider LiBr rightarrow Li raised to the plus plus Br raised to the negative power power and these information. triangle cap h sub lat is equal to negative 803 kJ/mol triangle cap h sub hydr of Br to the th power is not equal to negative 284 kJ/mol triangle cap h sub sol is equal to negative 47 kJ/mol What is the triangle cap h sub hydr of Li raised to the plus power ? Use triangle cap h sub sol is equal to negative triangle cap h sub lat plus triangle cap h sub hydr
The total hydration enthalpy is the sum for Li⁺ and Br⁻. Using ΔH_sol = −ΔH_lat + ΔH_hydr, substitute the values: −47 = −(−803) + ΔH_hydr(Li⁺) + (−284). This gives ΔH_hydr(Li⁺) = −566 kJ/mol, so the answer is choice D, negative 566 kJ/mol.
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