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Post-lab 7 Report Form: Biodiesel: Preparation, Viscosity, and Energy [100 point total] Please record your data below (including proper units; nearest 1. mL): Initial volume of canola oil used in the synthesis: 100 mL Final volume of biodiesel yielded: 92 mL Assume the vegetable oil has a density of 0.917 g/mL and a molar mass of 880 g/mol. Assume that the biodiesel has a density of 0.860 g/mL and a molar mass of 266 g/mol. 1. Calculate the number of moles of biodiesel yielded; this is the experimental yield. Show your calculations; include proper units and significant figures. [10 pts] (92 mL)(0.860) = 79.12 g 79.12 g / 266 g/mol = 0.2974 = 2.974 E-1 moles 2. Calculate the moles of vegetable oil used. Then use this value to calculate the theoretical yield of biodiesel (number of moles of biodiesel that would be produce if all of the vegetable oil was convert). Show your calculation; include proper units and significant figures. [20 pts] Hints: Three moles of biodiesel are expected per one mole of vegetable oil. 3. Calculate the % yield of biodiesel. Show your calculation; include proper units and significant figures. [10 pts] % Yield = (Experimental Yield / Theoretical Yield) x 100

          Post-lab 7 Report Form: Biodiesel: Preparation, Viscosity, and Energy
[100 point total]
Please record your data below (including proper units; nearest 1. mL):
Initial volume of canola oil used in the synthesis: 100 mL
Final volume of biodiesel yielded: 92 mL
Assume the vegetable oil has a density of 0.917 g/mL and a molar mass of 880 g/mol.
Assume that the biodiesel has a density of 0.860 g/mL and a molar mass of 266 g/mol.

1. Calculate the number of moles of biodiesel yielded; this is the experimental yield.
Show your calculations; include proper units and significant figures. [10 pts]
(92 mL)(0.860) = 79.12 g
79.12 g / 266 g/mol = 0.2974 = 2.974 E-1 moles

2. Calculate the moles of vegetable oil used. Then use this value to calculate the theoretical yield of biodiesel (number of moles of biodiesel that would be produce if all of the vegetable oil was convert).
Show your calculation; include proper units and significant figures. [20 pts]
Hints: Three moles of biodiesel are expected per one mole of vegetable oil.

3. Calculate the % yield of biodiesel.
Show your calculation; include proper units and significant figures. [10 pts]

% Yield = (Experimental Yield / Theoretical Yield) x 100

Post-lab 7 Report Form: Biodiesel: Preparation, Viscosity, and Energy
[100 point total]
Please record your data below (including proper units; nearest 1. mL):
Initial volume of canola oil used in the synthesis: 100 mL
Final volume of biodiesel yielded: 92 mL
Assume the vegetable oil has a density of 0.917 g/mL and a molar mass of 880 g/mol.
Assume that the biodiesel has a density of 0.860 g/mL and a molar mass of 266 g/mol.

1. Calculate the number of moles of biodiesel yielded; this is the experimental yield.
Show your calculations; include proper units and significant figures. [10 pts]
(92 mL)(0.860) = 79.12 g
79.12 g / 266 g/mol = 0.2974 = 2.974 E-1 moles

2. Calculate the moles of vegetable oil used. Then use this value to calculate the theoretical yield of biodiesel (number of moles of biodiesel that would be produce if all of the vegetable oil was convert).
Show your calculation; include proper units and significant figures. [20 pts]
Hints: Three moles of biodiesel are expected per one mole of vegetable oil.

3. Calculate the % yield of biodiesel.
Show your calculation; include proper units and significant figures. [10 pts]

% Yield = (Experimental Yield / Theoretical Yield) x 100

Added by Holly K.

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