The Limitation of Bicycles and Chemical Reactions: Understanding Stoichiometry

1. How many bicycles can be formed with 30 bicycle frames and 40 bicycle wheels? 2. What is the balanced equation for the reaction between aluminum and copper (II) chloride? 3. How do you calculate the percent yield in a chemical reaction experiment?

1. The number of bicycles that can be formed with 30 bicycle frames and 40 bicycle wheels is limited by the number of wheels available. Since each bicycle requires 2 wheels, the maximum number of bicycles that can be formed with 40 wheels is 20 bicycles. 2. The balanced equation for the reaction between aluminum and copper (II) chloride is: Al + 3 CuCl2 → 2 AlCl3 + 3 Cu. 3. To calculate the percent yield in a chemical reaction experiment, you need to divide the actual yield by the theoretical yield, then multiply by 100 to get the percentage.

The Limitation of Bicycles

Bicycles: With 30 bicycle frames and 40 bicycle wheels, the number of bicycles that can be formed is limited by the availability of wheels. Each bicycle requires 2 wheels, so with 40 wheels, you can form a maximum of 20 bicycles.

Chemical Reaction of Aluminum and Copper (II) Chloride

Balanced Equation: The reaction between aluminum and copper (II) chloride is represented by the balanced equation: Al + 3 CuCl2 → 2 AlCl3 + 3 Cu. This equation shows the stoichiometry of the reaction, balancing the number of atoms on both sides of the equation.

Calculating Percent Yield in a Chemical Reaction Experiment

Percent Yield: To calculate the percent yield in a chemical reaction experiment, you compare the actual yield (experimentally obtained) to the theoretical yield (calculated from stoichiometry). By dividing the actual yield by the theoretical yield and multiplying by 100, you can determine the percent yield of the reaction.

By understanding the stoichiometry of reactions and limitations in forming products, you can apply these concepts in various chemical and practical scenarios.