Podcast
Questions and Answers
What does the percentage yield measure in a chemical reaction?
What does the percentage yield measure in a chemical reaction?
Which of the following factors can affect the yield of a chemical reaction?
Which of the following factors can affect the yield of a chemical reaction?
How is the theoretical mass of a product calculated?
How is the theoretical mass of a product calculated?
What is atom economy?
What is atom economy?
Signup and view all the answers
In calculating atom economy, what does the formula use as its numerator?
In calculating atom economy, what does the formula use as its numerator?
Signup and view all the answers
Which reason is NOT given for why the actual product yield may be less than the theoretical yield?
Which reason is NOT given for why the actual product yield may be less than the theoretical yield?
Signup and view all the answers
What is the relationship between yield and atom economy?
What is the relationship between yield and atom economy?
Signup and view all the answers
Why is a reaction with high atom economy important?
Why is a reaction with high atom economy important?
Signup and view all the answers
What would NOT be a reason for choosing a particular reaction pathway?
What would NOT be a reason for choosing a particular reaction pathway?
Signup and view all the answers
Which of the following is a formula for calculating percentage yield?
Which of the following is a formula for calculating percentage yield?
Signup and view all the answers
Study Notes
Quantitative Chemistry: Yield and Atom Economy
-
Percentage Yield: A measure of how much product is actually obtained compared to the theoretical maximum.
- Formula: (Amount of product produced / Maximum amount of product possible) x 100
- Factors affecting yield:
- Reversible reactions
- Loss of product during separation
- Unexpected side reactions
- Yield: The actual amount of product obtained from a reaction.
-
Calculating Theoretical Product Mass:
- Calculate moles of reactant using the formula: moles = mass/molar mass.
- Use the balanced chemical equation to determine the mole ratio of reactant to product.
- Calculate moles of product using the mole ratio.
- Calculate the mass of the product using the formula: mass = moles x molar mass.
-
Atom Economy: A measure of the efficiency of a reaction. Quantifies the percentage of reactant atoms converted into desired products.
- Formula: (Mr of desired product / sum of Mr of all reactants) x 100
- High atom economy is desirable for economic and sustainable reasons, as it minimizes waste and reduces costs.
- Factors influencing choice of reaction pathways:
- Atom economy
- Reaction yield
- Reaction rate
- Equilibrium position
- Usefulness of by-products
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Test your understanding of yield and atom economy in quantitative chemistry. This quiz covers concepts such as percentage yield, factors affecting yield, and how to calculate theoretical product mass. Evaluate your knowledge on key formulas and their applications.
