Written Questions For Chapter 5,6,7 test

Question 1

Steps to do Stoichiometry

Answer 1

1. Write a balanced chemical equation
2. Convert the given mass or # of particles of a substance to moles
3. Calculate the # of moles of the required substance based on the # of moles of the given substance, using the appropriate mole ratio
4. Convert the # of moles of the required substance to mass or # of particles, as directed by the question

Question 2

Reasons why the actual yield is less than the theoretical yield

Answer 2

1. Many reactions don’t go to completion. The result is a mixture of reactants and products
2. There may be side reactions that occur
3. Some product may be lost during the process of separating it from the reaction mixture