HC08.2 Limiting Reactant Lecture

Multiple Choice

Which ingredient do you run out of first?

• ice cream

• cherries

• bannanas

• chopped nuts

• syrup

Poll

Solve the next problem: Making Pizza - Yields - 2

• Done

• Don't know how.

Multiple Choice

What is the Percent Yield in this problem?

• 88.89%

• 11.11%

• 1.125%

• 1.111%

• 90.00%

Poll

Examine the next problem and think about how to solve it.

• Ready

Multiple Choice

Which of these is the correct way to find the percent yield for this problem?

• $$\%yield\ =\ \frac{26.3\ g\ isobutylene}{32.8\ g\ MTBE}\times100\%$$

• $$\%yield\ =\ \frac{32.8\ g\ MTBE}{26.3\ g\ isobutylene}\times100\%$$

• none of these

Poll

Work the next problem: Limiting Reactants - Bikes

• Ready

• Don't know how.

Match

Match the part with the number of bikes that can be made with it.

• 11 wheels/tiries can make

• 6 chains can make

• 7 seats can make

• 15 handle bars can make

• 9 pedals can make

5 bikes

6 bikes

7 bikes

15 bikes

4 bikes

• 5 bikes

• 6 bikes

• 7 bikes

• 15 bikes

• 4 bikes

Multiple Choice

Which part LIMITS the number of bikes that can be made and therefore is called the LIMITING PART?

• wheels/tiries

• chains

• rear-view mirrors

• handlebars

• pedals

Poll

Set up the Ice Table, find the Limiting Reagent, Complete the Ice Table for the Example 3a

• Done

• I don't know how

Multiple Choice

What is the Limiting Reactant in this problem?

• CO₂

• O₂

• H₂O

• C₄H₁₀

Poll

Ready to move on?

• Yes

Multiple Choice

How many moles of carbon dioxide are formed?

• 0.240 mol CO₂

• 3.12 mol CO₂

• 1.92 mol CO₂

• 2.40 mol CO₂

• 0.481 mol CO₂

Multiple Choice

How many moles of water are formed?

• 0.240 mol H₂O

• 3.12 mol H₂O

• 1.92 mol H₂O

• 2.40 mol H₂O

• 0.481 mol H₂O

Multiple Choice

How many moles of butane are left over (excess reactant)?

• 0.240 mol C₄H₁₀

• 0.860 mol C₄H₁₀

• 1.240 mol C₄H₁₀

• 0.620 mol C₄H₁₀

• 0.481 mol C₄H₁₀