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I need to make and calculate a theoretical yield for my lab. It has been a while

ID: 573486 • Letter: I

Question

I need to make and calculate a theoretical yield for my lab. It has been a while since I've taken a chemistry course, and I'm really rusty on how to put it together and make sure it's balanced. Please help.

One of the most general methods for the preparation of esters is an acid-catalyzed esterification (Equation1). This reaction is an equilibrium process (the reverse reaction is ester hydrolysis), and product formation can be favored by increasing the concentration of one of the reactants and/or by removal of the water formed H30+ Lo +H2O Fischer Esterification R OH R OR H2SO4 banana oil synthesis + HO OH isoamyl alcohol (isopentyl alcohol) isoamyl acetate (isopentyl acetate) acetic acid

Explanation / Answer

Esterification

molar mass of isoamyl alcohol = 88.15 g/mol

molar mass of acetic acid = 60.05 g/mol

moles = grams/molar mass

So,

moles of isoamyl alcohol started with = 2.4 g/88.15 g/mol = 0.027 mol

moles of acetic acid taken = 5.3 g/60.05 g/mol = 0.088 mol

Since moles of acetic acid is higher, isoamyl alcohol is the limiting reactant in this case

moles of isoamyl acetate product formed = 0.027 mol

Theoretical mass of product isoamyl acetate formed = 0.027 mol x 130.2 g/mol

                                                                                    = 3.515 g