Question

Calculations The actual yield is the amount of pure product actually obtained in an experiment. The theoretical yield is the amount that could be obtained under theoretical or ideal conditions. The theoretical yield is determined from the stoichiometry of the experiment and from the amount of starting material actually used. However, due to incomplete reactions, side reactions and mechanical losses, the theoretical yield is never achieved. We therefore use the percentage yield as a measure of the overall efficiency of a reaction. Percentage yield = \frac{actualyield}{theoretica yield} \times 100% Although it is usually considered just as important to obtain a satisfactory yield as a pure product, purity must not be sacrificed for greater yields of impure product. Discussion 1. If the prepared ASA sample turned purple when mixed with FeCl3 solution, what would you conclude about your prepared ASA sample? 2. What was the melting point of the prepared aspirin? How does the melting point compare with the literature value? Account for any difference between your melting point and the literature value. Questions 1. Draw the structure of methyl salicylate, and say what evidence indicates that methyl salicylate was

          Calculations
The actual yield is the amount of pure product actually obtained in an experiment. The theoretical yield is the
amount that could be obtained under theoretical or ideal conditions. The theoretical yield is determined from
the stoichiometry of the experiment and from the amount of starting material actually used. However, due to
incomplete reactions, side reactions and mechanical losses, the theoretical yield is never achieved. We
therefore use the percentage yield as a measure of the overall efficiency of a reaction.
Percentage yield = \frac{actualyield}{theoretica yield} \times 100%
Although it is usually considered just as important to obtain a satisfactory yield as a pure product, purity must
not be sacrificed for greater yields of impure product.
Discussion
1. If the prepared ASA sample turned purple when mixed with FeCl3 solution, what would you conclude
about your prepared ASA sample?
2. What was the melting point of the prepared aspirin? How does the melting point compare with the
literature value? Account for any difference between your melting point and the literature value.
Questions
1. Draw the structure of methyl salicylate, and say what evidence indicates that methyl salicylate was

Calculations
The actual yield is the amount of pure product actually obtained in an experiment. The theoretical yield is the
amount that could be obtained under theoretical or ideal conditions. The theoretical yield is determined from
the stoichiometry of the experiment and from the amount of starting material actually used. However, due to
incomplete reactions, side reactions and mechanical losses, the theoretical yield is never achieved. We
therefore use the percentage yield as a measure of the overall efficiency of a reaction.
Percentage yield = (actualyield)/(theoretica yield) ×100%
Although it is usually considered just as important to obtain a satisfactory yield as a pure product, purity must
not be sacrificed for greater yields of impure product.
Discussion
1. If the prepared ASA sample turned purple when mixed with FeCl3 solution, what would you conclude
about your prepared ASA sample?
2. What was the melting point of the prepared aspirin? How does the melting point compare with the
literature value? Account for any difference between your melting point and the literature value.
Questions
1. Draw the structure of methyl salicylate, and say what evidence indicates that methyl salicylate was

Added by Nathaniel P.

Question

Please give Ace some feedback