7- Consider the following chemical reaction- (12 pts) - 2 Al(s) +3 Cl2.docx

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7. Consider the following chemical reaction. (12 pts) > 2 Al(s) +3 Cl2(g)- - - 2 AlCl3(s) (a) If 5.00 grams of Al reacts with 5.00 grams of Cl2, and 6.12 grams of 13 is produced, what is the percent (%) yield of the reaction? Solution according to balanced reaction 2 x 27 g Al react with 3 x 71 g Cl2 5.00 g Al reacts with 5.00 x 3 x 71 / 2 x 27 = 19.72 g Cl2 but we have only 5.00 g Cl2. so Cl2 is limiting reagent 3 x 71 g Cl2 gives 2 x 133.34 g AlCl3 5.00 g Cl2 gives 5.00 x 2 x 133.34 / 3 x 71 = 6.26 g AlCl3 therotical yield = 6.26 g actual yield = 6.12 g % yield = (6.12 / 6.26) x 100 % yield = 97.8 % .

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7- Consider the following chemical reaction- (12 pts) - 2 Al(s) +3 Cl2.docx

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