Stoich Day 2 Notes

Multiple Choice

What is the formula for percent yield?

• $$\frac{Actual}{Theoretical}\times100$$

• $$\frac{Theoretical}{Actual}\times100$$

• $$\frac{Actual\times Theoretical}{100}$$

• $$\frac{100}{Actual\times Theoretical}$$

Multiple Choice

The ______________ yield is the maximum amount of product possible in a reaction. This determines the amount of product that should be produced in a perfect setting

• Percent

• actual

• stoichiometry

• theoretical

Multiple Choice

Which of the following do you get through measuring its mass? (No calculations)

• percent yield

• theoretical yield

• actual yield

• limiting reagent

Multiple Choice

Theoretical yield = 73g
Actual yield = 62g
Calculate the percent yield.

• 1.16%

• 116%

• 85%

• 76%

Multiple Choice

When reacting Na with Cl₂, we calculated that the theoretical yield should be 13 grams. Our actual yield was 12.5 grams. What is the percent yield?

• 90.4%

• 104%

• 96.15%

• 1.04%

Multiple Choice

The attendance for the basketball game was estimated to be 15,000 people but 12,500 people attended. What was the percent error?

• 16.67%

• 20%

• 2500%

• 80%

Multiple Choice

Zed went to the store and bought a bag of chips.  He estimated there would be 350 chips in the package, but realized there were only 210 chips in that package.  What was his percent error?

• 35%

• 67%

• 85%

• 92%

Multiple Choice

Jessie estimates the weight of her cat to be 8 pounds.  The actual weight of the cat was 10 pounds.  Find the percent error.  

• 15%

• 20%

• 25%

• 30%