GEN CHEM LESSON 9-10 .pdf - Lesson 9 Limiting Reactant...

Lesson
9
Limiting Reactant and
Excess Reactant
Learning Activities
ACTIVITY 1. MAKE IT COMPLETE
Consider the following reaction and complete the table below. (20 POINTS ALL)
5 Fe + 3 O
2
→ Fe
3
O
4
+ 2 FeO
Grams of Fe
Moles of O
2
Limiting
Reactant
Grams of FeO
Possible
(a) 0.548 g 0.038 mol Fe 0.284 g
(b) 2.084 g 1.79 mol Fe 1.0724 g
(c) 14.5 g 0.056 mol
O
2
2.682 g
(d) 56.1 g 0.112 mol
O
2
5.3643 g
Activity 2. Green Chemistry
Instructions: Read the article and answer the questions below. 5 points each question
1. What are the benefits of green chemistry?
2. How can non-beneficial chemical reactions be minimized and stopped?

3. Discuss how chemical engineering applies the concept of limiting reagent and excess
reagent in a reaction.