Gaseous methane (CH will react with gaseous oxygen (0,) to produce gaseous carbon dioxide (CO,) and gaseous water (H,0). Suppose 4.81 g of methane is mixed with 29. g of oxygen. Calculate the minimum mass of methane that could be left over by the chemical reaction. Round your answer to 2 significant digits.

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**Transcription and Explanation for Educational Content:**

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**Chemical Reaction Problem: Methane and Oxygen**

**Problem Statement:**

Gaseous methane (\(CH_4\)) will react with gaseous oxygen (\(O_2\)) to produce gaseous carbon dioxide (\(CO_2\)) and gaseous water (\(H_2O\)). Suppose 4.81 g of methane is mixed with 29. g of oxygen. Calculate the minimum mass of methane that could be left over by the chemical reaction. Round your answer to 2 significant digits.

**Input Fields:**

- **Mass input box:** [unit in grams (g)]
- **Check and Explanation Buttons:**
  - An input box for entering numerical answers.
  - A "Check" button for submitting the answer.
  - An "Explanation" option for viewing the solution steps.

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**Instructions for Students:**

1. **Review the Reaction:**
   - Understand the stoichiometry of the reaction: \(CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O\).
   - Ensure you know how to balance chemical equations.

2. **Calculate Limiting Reactant:**
   - Determine the moles of \(CH_4\) and \(O_2\) using their molar masses.
   - Identify the limiting reactant by comparing the mole ratio with those required by the balanced equation.

3. **Determine Leftover Methane:**
   - Calculate the amount of \(CH_4\) that reacts completely with the limiting reactant.
   - Subtract this from the initial amount to find the leftover mass.

4. **Round Your Answer:**
   - Ensure your final answer is rounded to 2 significant digits.

By following these steps, you can effectively solve the problem and understand the chemical interactions and calculations involved in limiting reagent problems.

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Transcribed Image Text:**Transcription and Explanation for Educational Content:** --- **Chemical Reaction Problem: Methane and Oxygen** **Problem Statement:** Gaseous methane (\(CH_4\)) will react with gaseous oxygen (\(O_2\)) to produce gaseous carbon dioxide (\(CO_2\)) and gaseous water (\(H_2O\)). Suppose 4.81 g of methane is mixed with 29. g of oxygen. Calculate the minimum mass of methane that could be left over by the chemical reaction. Round your answer to 2 significant digits. **Input Fields:** - **Mass input box:** [unit in grams (g)] - **Check and Explanation Buttons:** - An input box for entering numerical answers. - A "Check" button for submitting the answer. - An "Explanation" option for viewing the solution steps. --- **Instructions for Students:** 1. **Review the Reaction:** - Understand the stoichiometry of the reaction: \(CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O\). - Ensure you know how to balance chemical equations. 2. **Calculate Limiting Reactant:** - Determine the moles of \(CH_4\) and \(O_2\) using their molar masses. - Identify the limiting reactant by comparing the mole ratio with those required by the balanced equation. 3. **Determine Leftover Methane:** - Calculate the amount of \(CH_4\) that reacts completely with the limiting reactant. - Subtract this from the initial amount to find the leftover mass. 4. **Round Your Answer:** - Ensure your final answer is rounded to 2 significant digits. By following these steps, you can effectively solve the problem and understand the chemical interactions and calculations involved in limiting reagent problems. ---
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