Question

Very few chemical reactions have a 100% yield. Assuming you had correctly followed the experimental procedure, suggest two reasons why the yield is less than 100%.

A) Incomplete reaction conversion and impurities in reactants.
B) High reaction temperature and excess reactants.
C) Long reaction time and low concentration of reactants.
D) Efficient catalyst usage and precise measurements.
Please select the correct option(s).

Answer 1

The yield of a chemical reaction is often less than 100% due to incomplete reaction conversion and impurities in reactants.

Step-by-step explanation:

The yield of a chemical reaction is often less than 100% due to several factors.

Two common reasons for a less than 100% yield are:

1. Incomplete reaction conversion: This happens when not all of the reactants are converted into product. It could be due to unfavorable reaction conditions or an inefficient catalyst.
2. Impurities in reactants: If the reactants used in the reaction are impure, it can affect the yield. Impurities can interfere with the reaction or contribute to the formation of unwanted byproducts.