CHEM 134 EXAM 2 QUESTIONS AND
ANSWERS WITH COMPLETE SOLUTION
100% CORRECT!!!
Question: What is the definition of Stoichiometry?
Answer: ✔✔ The quantitative relationships and proportions between the amounts
of reactants and products as determined by a balanced chemical equation.
Question: What does the term "Limiting Reactant" refer to?
Answer: ✔✔ The specific starting material that is completely consumed first,
which halts the process and restricts the total amount of product that can be
generated.
Question: What is a "Theoretical Yield"?
Answer: ✔✔ The maximum calculated quantity of product that can possibly be
created in a reaction, assuming perfect conditions and based entirely on the
limiting reactant.
Question: What is meant by "Actual Yield"?
Answer: ✔✔ The real, measurable amount of product that is physically collected
or obtained when a chemical reaction is performed in a laboratory.
percent yield -ANSWER ✔✔the percentage of the theoretical yield that was
actually attained, is calculated as the ratio of the actual yield to the theoretical yield
solution -ANSWER ✔✔a homogeneous mixtures of two substances
solvent -ANSWER ✔✔the majority of the mixture
, solute -ANSWER ✔✔the minority of the mixture
aqueous solution -ANSWER ✔✔one in which water acts as the solvent
dilute solution -ANSWER ✔✔one that contains a small amount of solute relative
to the solvent
concentrated solution -ANSWER ✔✔one that contains a large amount of solute
relative to the solvent
molarity -ANSWER ✔✔the amount of solute (in moles) divided by the volume of
solution in (liters)
stock solutions -ANSWER ✔✔to save space in storerooms, laboratories often store
solutions in concentrated forms called stock solutions
electrolytes -ANSWER ✔✔substances that dissolve in water to form solutions that
conduct electricity
strong electrolytes -ANSWER ✔✔substances such as sodium chloride that
completely dissociate into ions when they dissolve in water are strong electrolytes
nonelectrolytes -ANSWER ✔✔compounds such as sugar that do not dissociate
into ions when dissolved in water are called nonelectrolytes
ANSWERS WITH COMPLETE SOLUTION
100% CORRECT!!!
Question: What is the definition of Stoichiometry?
Answer: ✔✔ The quantitative relationships and proportions between the amounts
of reactants and products as determined by a balanced chemical equation.
Question: What does the term "Limiting Reactant" refer to?
Answer: ✔✔ The specific starting material that is completely consumed first,
which halts the process and restricts the total amount of product that can be
generated.
Question: What is a "Theoretical Yield"?
Answer: ✔✔ The maximum calculated quantity of product that can possibly be
created in a reaction, assuming perfect conditions and based entirely on the
limiting reactant.
Question: What is meant by "Actual Yield"?
Answer: ✔✔ The real, measurable amount of product that is physically collected
or obtained when a chemical reaction is performed in a laboratory.
percent yield -ANSWER ✔✔the percentage of the theoretical yield that was
actually attained, is calculated as the ratio of the actual yield to the theoretical yield
solution -ANSWER ✔✔a homogeneous mixtures of two substances
solvent -ANSWER ✔✔the majority of the mixture
, solute -ANSWER ✔✔the minority of the mixture
aqueous solution -ANSWER ✔✔one in which water acts as the solvent
dilute solution -ANSWER ✔✔one that contains a small amount of solute relative
to the solvent
concentrated solution -ANSWER ✔✔one that contains a large amount of solute
relative to the solvent
molarity -ANSWER ✔✔the amount of solute (in moles) divided by the volume of
solution in (liters)
stock solutions -ANSWER ✔✔to save space in storerooms, laboratories often store
solutions in concentrated forms called stock solutions
electrolytes -ANSWER ✔✔substances that dissolve in water to form solutions that
conduct electricity
strong electrolytes -ANSWER ✔✔substances such as sodium chloride that
completely dissociate into ions when they dissolve in water are strong electrolytes
nonelectrolytes -ANSWER ✔✔compounds such as sugar that do not dissociate
into ions when dissolved in water are called nonelectrolytes
