Empirical formula #2 lab

Empirical formula #2 lab - results because there will be...

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Verina Atalla October 12, 2009 Renu Jain  Chemistry 1111 Lab  Determining the Empirical formula of a compound 1) Write the balanced chemical equation for this experiment   Mg(s) + 2HCl   MgCl2 + H2 2) Why is it important to add 1 M HCl dropwise to the crucible? It is important to add the HCl dropwise because the acid is very reactive so by  adding it slowly, you are making the reaction slower so that you get the effect  needed.  Also if you add too much when you don’t need it, it could effect you 
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Unformatted text preview: results because there will be excess of HCl 3) Why are you advised to not heat the dry solid too much? You are advised to not heat the dry solid too much because when you over heat it, it will decompose and it will turn into a metal oxide and metal oxides weigh less than the metal chloride itself so it will affect the outcome of your answers...
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