When ethane (C 2 H 6 ) reacts with chlorine(Cl 2 ) the main product is C 2 H 5 C

Question

When ethane (C2H6) reacts with chlorine(Cl2) the main product is C2H5Cl;but other products containing Cl (chlorine), such asC2H4Cl2, are also obtained insmall quantities. The formation of these other productsreduces the yield of C2H5Cl. In acertain experiment 170. g of C2H6 reactsswith 220. g of Cl2. (a) Assuming that C2H6 andCl2 react only to form C2H5Cl andHCl, calculate the theoretical yield ofC2H5Cl.     _____ g (b) Calculate the percent yield ofC2H5Cl if the reaction produced 164 g ofC2H5Cl.   _____% When ethane (C2H6) reacts with chlorine(Cl2) the main product is C2H5Cl;but other products containing Cl (chlorine), such asC2H4Cl2, are also obtained insmall quantities. The formation of these other productsreduces the yield of C2H5Cl. In acertain experiment 170. g of C2H6 reactsswith 220. g of Cl2. (a) Assuming that C2H6 andCl2 react only to form C2H5Cl andHCl, calculate the theoretical yield ofC2H5Cl.     _____ g (b) Calculate the percent yield ofC2H5Cl if the reaction produced 164 g ofC2H5Cl.   _____%

Explanation / Answer

C2H6 + Cl2 ----> C2H5Cl + HCl Molar mass of C6H6 is = 6*12 + 6*1 = 78 g Molar mass of Cl is = 2 * 35.5 = 71 g Molar mass of C2H5Cl is = 2* 12 + 5*1 + 35.5 = 64.5 g 78 g of C6H6 reacts with 71 g of Cl2 170 g of C6H6 reacts with X g of Cl2 X = ( 170*71 ) / 78     = 154.74 g of Cl2 So 220 - 154.74 ) g of Cl2 left unreacted 78 g of C6H6 produces 64.5 g of C2H5Cl 170 g of C6H6 produces Y g of C2H5Cl Y = ( 64.5 * 170 ) / 78     = 140.57g                    --- this is the theoretical yield ofC2H5Cl In the second problem the product formed is given as 164 g ,it is higher than theoretical yield ,So please check once theamount If it is corrected then % yield = ( actual yield / theoreticalyield ) * 100 170 g of C6H6 produces Y g of C2H5Cl Y = ( 64.5 * 170 ) / 78     = 140.57g                    --- this is the theoretical yield ofC2H5Cl In the second problem the product formed is given as 164 g ,it is higher than theoretical yield ,So please check once theamount If it is corrected then % yield = ( actual yield / theoreticalyield ) * 100

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