Find the enthalpy of hydration for an iodide ion in the process RbI rightarrow Rb raised to the plus plus cap i raised to the negative power power Use triangle cap h sub sol is equal to negative triangle cap h sub lat plus triangle cap h sub hydr triangle cap h sub sol is equal to 31 point 0 kJ/mol triangle cap h sub lat is equal to negative 630 point 0 kJ/mol triangle cap h sub hydr Rb raised to the plus power is equal to negative 315 point 0 KJ/mol of Rb raised to the plus power is equal to negative 315 point 0 kJ/mol