solve this simple chemistry question thanks When you comment on how successful y

Question

solve this simple chemistry question thanks

When you comment on how successful your synthesis was, you will refer to the percent yield of your reaction. The percent yield is looking at the mass of your product as a percent of the theoretical yield expected. A reasonable percent yield is typically 60% or higher. If you isolated 0.00019 mol of cholesteryl nonanoate and expected 0.136 g what was the percent yield of your reaction? Give your answer to two decimal places; DO NOT include units. Your Answer: _______

Explanation / Answer

convert moles of Cholesteryl nonanoate in to mass using

molar mass of Cholesteryl nonanoate = 526.8763 g/mol

moles = mass / molar mass

mass = moles x molar mass 0.00019 mol x 526.8763 g/mol = 0.474 g

now

% of yield = [ isolated mass / actual mass ] x 100

= [0.474 / 0.136] x 100

= 348.5 %

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