Table of contents

1. Intro to General Chemistry3h 48m
2. Atoms & Elements4h 16m
3. Chemical Reactions4h 10m
4. BONUS: Lab Techniques and Procedures1h 38m
5. BONUS: Mathematical Operations and Functions48m
6. Chemical Quantities & Aqueous Reactions3h 53m
7. Gases3h 49m
8. Thermochemistry2h 37m
9. Quantum Mechanics2h 58m
10. Periodic Properties of the Elements3h 9m
11. Bonding & Molecular Structure3h 29m
12. Molecular Shapes & Valence Bond Theory1h 57m
13. Liquids, Solids & Intermolecular Forces2h 23m
14. Solutions3h 1m
15. Chemical Kinetics2h 53m
16. Chemical Equilibrium2h 29m
17. Acid and Base Equilibrium5h 1m
18. Aqueous Equilibrium4h 47m
19. Chemical Thermodynamics1h 50m
20. Electrochemistry2h 42m
21. Nuclear Chemistry2h 36m
22. Organic Chemistry5h 7m
23. Chemistry of the Nonmetals2h 39m
24. Transition Metals and Coordination Compounds3h 16m

3. Chemical Reactions

Limiting Reagent

General Chemistry

3. Chemical Reactions

Limiting Reagent

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Multiple Choice

In a chemical reaction, how can you determine the excess reactant after identifying the limiting reagent?

Calculate the amount of product formed by the limiting reagent and subtract from the initial amount of the excess reactant.

Multiply the initial amounts of all reactants by their molar masses.

Use the stoichiometric coefficients to find the ratio of reactants used.

Add the initial amounts of all reactants and divide by the number of products.

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Verified step by step guidance

Identify the limiting reagent by comparing the mole ratio of the reactants used in the balanced chemical equation to the mole ratio of the reactants available.

Calculate the amount of product that can be formed from the limiting reagent using stoichiometry. This involves using the balanced chemical equation to convert moles of the limiting reagent to moles of product.

Determine the initial amount of the excess reactant in moles. This can be done by converting the given mass of the excess reactant to moles using its molar mass.

Calculate the amount of the excess reactant that reacts by using the stoichiometric relationship between the limiting reagent and the excess reactant from the balanced equation.

Subtract the amount of the excess reactant that reacts from the initial amount of the excess reactant to find the remaining amount of the excess reactant.