Experiment 41 Advance Study Assignment: Preparation of Aspirin 1. Calculate the theoretical yield of aspirin to be obtained in this experiment, starting with 2.0 g of salicylic acid and 5.0 mL of acetic anhydride (density

The theoretical yield of aspirin is 2.61g

Explanation:

The balanced equation is

Salicylic acid + Acetic anhydride ---> Acetylsalicylic acid + Acetic acid  

Number of moles salicylic acid = (2.0g) / (138 g/mol) = 0.0145 mol  

Mass of acetic anhydride = (1.08g/ml ) * (5.0 mL)  = 5.4g

Number of moles of acetic anhydride = 5.4g / (102g/mol) = 0.0529 mol

 As we can see in the reaction equation

1 mol of acetic anhydride  produce 1 mol aspirin

OR

0.0145 mol salicylic acid produces 0.0145 mol aspirin.

Mass of aspirin produced = 0.0145 mol * (180.157g/mol)

The theoretical yield of aspirin is 2.61g

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.

sry but any answer choices