Answer:
a) The total volume of gas present at the end of the experiment is 300 cm³.
b) Following these steps will allow you to determine the total volume of gas present in the container at the end of the experiment.
Explanation:
a) To calculate the total volume of gas present at the end of the experiment when 10% of the oxygen is converted to ozone, we can follow these steps:
1. Calculate the volume of oxygen that is converted to ozone:
- 10% of 300 cm³ = 0.1 × 300 cm³ = 30 cm³
2. Subtract the volume of oxygen converted to ozone from the initial volume of oxygen:
- 300 cm³ - 30 cm³ = 270 cm³
3. Add the volume of oxygen remaining and the volume of ozone produced:
- 270 cm³ (remaining oxygen) + 30 cm³ (ozone produced) = 300 cm³
Therefore, the total volume of gas present at the end of the experiment is 300 cm³.
b) To calculate the total volume of gas present in the container at the end of the experiment when 100 cm³ of hydrogen reacts with 200 cm³ of chlorine, we can follow these steps:
1. Determine the limiting reactant:
- Calculate the mole ratio of hydrogen to chlorine in the balanced equation:
1 mol H₂ : 1 mol Cl₂
- Convert the given volumes of hydrogen and chlorine to moles using the ideal gas law or the molar volume of gases at STP (standard temperature and pressure).
2. Identify the limiting reactant:
- The reactant that produces fewer moles of product is the limiting reactant.
- Compare the number of moles calculated for each reactant to determine which one is limiting.
3. Calculate the moles of product formed based on the limiting reactant:
- Use the balanced equation to determine the mole ratio of the limiting reactant to the product.
4. Convert the moles of product to volume:
- Convert the moles of product to volume using the ideal gas law or the molar volume of gases at STP.
Following these steps will allow you to determine the total volume of gas present in the container at the end of the experiment.