Answer :
To calculate percent yield and percent error, first determine the theoretical yield from the balanced equation and given starting material. The percent yield is found to be 73.18%, and the percent error is 26.82%. These calculations provide insight into reaction efficiency.
To determine the percent yield and percent error, follow these steps:
Step 1: Calculate Theoretical Yield
The balanced equation is:
C₆H₆ + Cl₂ --> C₆H₅Cl + HCl
Molar masses are: C₆H₆ (78.11 g/mol) and C₆H₅Cl (112.56 g/mol)
Moles of C₆H₆ = 36.8 g / 78.11 g/mol = 0.471 moles.
Theoretical yield of C₆H₅Cl = 0.471 moles * 112.56 g/mol = 53.03 g.
Step 2: Calculate Percent Yield
Percent Yield = (Actual Yield / Theoretical Yield) * 100
Percent Yield = (38.8 g / 53.03 g) * 100 = 73.18%
Step 3: Calculate Percent Error
Percent Error = |(Theoretical Yield - Actual Yield) / Theoretical Yield| * 100
Percent Error = |(53.03 g - 38.8 g) / 53.03 g| * 100 = 26.82%
Therefore, the percent yield of C₆H₅Cl is 73.18% and the percent error is 26.82%.
