9 Questions
5 Views

# Limiting Reagent Calculation Quiz

Created by
@EuphoricUnderstanding

### What is the molar mass of (NH2)2CO?

• 60.06 g/mol (correct)
• 50.03 g/mol
• 65.92 g/mol
• 55.85 g/mol
• ### In the reaction to produce (NH2)2CO, which compound is the limiting reagent?

• CO2
• (NH4)2CO
• NH3 (correct)
• (NH2)2CO
• ### How many moles of (NH2)2CO can be produced from 1142 g of CO2 in the reaction?

• 22.71 moles
• 31.02 moles
• 25.95 moles (correct)
• 28.13 moles
• ### What is the mass of (NH2)2CO produced from 18.71 moles of (NH2)2CO?

<p>1124 g</p> Signup and view all the answers

### From the given data, what can be said about the role of NH3 in the reaction?

<p>It is the excess reagent</p> Signup and view all the answers

### If more NH3 was added to the reaction, what would be the impact on the production of (NH2)2CO?

<p>(NH2)2CO production would remain the same</p> Signup and view all the answers

### What does the molar ratio between NH3 and (NH2)2CO tell us about the reaction?

<p>(NH3) reacts with CO2 to form (NH2)2CO</p> Signup and view all the answers

### Which compound plays a crucial role in converting moles of CO2 to moles of (NH2)2CO?

<p>(NH2)2CO</p> Signup and view all the answers

### 'Mole fraction' refers to:

<p>% ratio of moles of a component to total moles in a solution</p> Signup and view all the answers

## Study Notes

### Limiting Reagent

• The limiting reagent is the reactant that yields the smaller amount of the product.
• It is the reactant that gets consumed first and limits the amount of product formed.

### Calculating the Limiting Reagent

• To determine the limiting reagent, calculate the number of moles of product obtainable from each reactant.
• The reactant that produces the smaller amount of product is the limiting reagent.

### Example: NO2 Formation

• 8 moles of NO yields 2 moles of NO2.
• 7 moles of O2 yields 14 moles of NO2.
• Therefore, NO is the limiting reagent, and O2 is the excess reagent.

### Problem: (NH2)2CO Formation

• The balanced chemical equation is CO2(g) + 2NH3(g) → (NH2)2CO(aq) + H2O(l).
• 637.2 g of NH3 reacts with 1142 g of CO2.
• NH3 is the limiting reagent, producing 18.71 moles of (NH2)2CO.
• The mass of (NH2)2CO formed is 1124 g.

### Excess Reagent

• The excess reagent is the reactant that is left over after the reaction is complete.
• In this case, the excess reagent is CO2.
• The mass of excess CO2 is the initial mass minus the mass that reacted.

## Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

## Description

Test your knowledge on determining the limiting reagent in a chemical reaction by calculating the moles of product obtainable from given initial quantities of reactants. Understand how to identify which reactant limits the amount of product formed.

## More Quizzes Like This

Use Quizgecko on...
Browser
Information:
Success:
Error: