If someone can just show me how to calculate one of them, I will follow those st

Question

If someone can just show me how to calculate one of them, I will follow those steps to calulate the rest.

Calculate percent yield:

OIL

Mass of Oil (g)

Base (3.0 M)

Mass of FAS (Soap) (g)

% Yield of Soap

Palm

2.001

NaOH

1.622

1.904

KOH

1.681

2.012

Na2CO3

1.002

1.992

K2CO3

1.134

The average molar mass for Sodium fatty acid salt is: 291.7 g/mol. The average molar mass for Potassium fatty acid salt is: 307.8.

EDIT: We used 3 mL of base per trial.

OIL

Mass of Oil (g)

Base (3.0 M)

Mass of FAS (Soap) (g)

% Yield of Soap

Palm

2.001

NaOH

1.622

1.904

KOH

1.681

2.012

Na2CO3

1.002

1.992

K2CO3

1.134

Explanation / Answer

Mass of oil = 2.001 g

average mass of sodium fatty acid salt = 291.7 g/mol

So mass of glyceride (palm oil) = 3(291.7 - 39) + 89.094 = 847.2 g

Thta is 3 moles of fatty acid part and 1 mole of glycerol

moles of palm oil = 2.001/847.2 = 0.0024 mol

Theoretical yield of sodium salt of fatty acid = 0.0024 x 3 x 291.7 = 2.07 g

Percent (%) yield of soap = 1.622 x 100/2.07 = 78.36%

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