Limiting Reactant and Percent Yield

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9 Terms

1
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Which option below has the correct order of steps to complete a stoichiometric calculation to determine percent yield?

Write a balanced equation, determine the limiting reactant, calculate the theoretical yield, calculate the percent yield

Write a balanced equation, determine the excess reactant, calculate the theoretical yield, calculate the percent yield

Determine the excess reactant, write a balanced equation, calculate the theoretical yield, calculate the percent yield

Calculate the percent yield, determine the limiting reactant, write a balanced equation, calculate the theoretical yield

A) Write a balanced equation, determine the limiting reactant, calculate the theoretical yield, calculate the percent yield

2
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A welder has 1.873 × 10^2 g Fe2O3 and 94.51 g Al in his welding kit. Which reactant will he run out of first?

A welder has 1.873 × 10^2 g Fe2O3 and 94.51 g Al in his welding kit. Which reactant will he run out of first?

Fe2O3

3
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How many grams of aluminum oxide are produced in the reaction?

119.6 g

4
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Hydrogen gas can be produced by the reaction of magnesium metal with hydrochloric acid by the reaction below.

Mg + 2HCl → MgCl2 + H2

If 4.00 g of Mg is reacted with 3.20 g of HCl, what is the limiting reactant?

HCI

5
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Which reactant is the excess reactant?

Mg

6
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How many grams of magnesium chloride is produced in the reaction?

4.18 g MgCl2

7
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In the reaction below, 1.000 × 103 g LiOH is combined with 8.80 × 102 g CO2. The reaction produces 3.25 × 102 g H2O in an experiment.

CO2 + 2LiOH → Li2CO3 + H2O

What is the limiting reactant in this reaction?

Co2

8
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What is the theoretical yield of water in this test reaction?

360. g water

9
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What is the percent yield of the reaction? Type in the answer using 3 significant figures.

__%

90.3