Limiting Reactants (Section) When ethane (C2H6) reacts with chlorine (CI2), the main product is C2H5CI, but other products containing Cl, such as C2H4CI2, are also obtained in small quantities. The formation of these other products reduces the yield of C2H5CI.: (a) Calculate the theoretical yield of C2H5CI when 125 g of C2H6 reacts with 255 g of CI2, assuming that C2H6 and CI2 react only to form C2H2CI and HCL; (b) Calculate the percent yield of C2H5CI if the reaction produces 206 g of C2H5CI.
Step-by-step solution Step 1 of 5 The equation given in the question is as follows : C2H6(g)+Cl2(g)C2H5Cl(g)+HCl(g) Step 2 of 5 Molar mass of C2H6 and Cl2 We have to know the atomic weights and atomic numbers of the elements involved in the equation . Molar mass is the mass of a given chemical element or chemical compound (g) divided by the amount of substance (mol). The molar mass of a compound can be calculated by adding the standard atomic masses (in g/mol) of the constituent atoms. Step 3 of 5 The limiting reagent (or limiting reactant) in a chemical reaction is the substance that is totally consumed when the chemical reaction is complete. The amount of product formed is limited by this reagent, since the reaction cannot continue without it.