![]() ![]() Remember, we talked about this under successive ionization energies. If I needed to remove more than one electron, then I'd have to add an organization to organization three and so on. And since I'm only removing one electron, it's ionization energy. Removing electrons has to do with ionization energy. Once I have it in its gas estate, I need to change it from a neutral metal to a positively charged metal. Going from a solid to a gas is called sublimation, so we're dealing with M. To do that, I first have to convert sodium solid into a gas. What we need to do first is realized that we need to get sodium to its ionic form as a gas and we need to get chlorine to its ionic form as a gas as well. So we're starting out here with sodium solid. Now, in order to calculate the entropy of formation, both elements must first be converted into their ionic gaseous forms. ![]() We can have fractions and decimals as coefficients. It's telling me here that the formation of one mole of sodium chloride is accomplished by combining one mole of sodium solid with half a mole of chlorine gas. Standard heat of formation has that little circle there. Now remember, associated with the formation equation is our envelop, or heat of formation, which is Delta H F here. Ah, formation equation shows the standard states of elements combining toe form one mole of product. We're gonna go piece by piece, step by step to figure it out. ![]() The born Haber cycle is an extensive process. Now, the born Haber cycle is a reaction outline that gives the steps for the formation of an ionic compound from the standard states of its elements. ![]()
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