Question

Propane reacts with oxygen to produce carbon dioxide and water according to the following equation.

C3H8 + 5O2 → 3CO2 + 4H2O

Which ratio of components is correct?

(1 point)
Responses

For every 4 moles of water produced, 3 moles of propane react.
For every 4 moles of water produced, 3 moles of propane react.

For every 3 moles of carbon dioxide produced, 5 moles of oxygen react.
For every 3 moles of carbon dioxide produced, 5 moles of oxygen react.

For each mole of propane that reacts, 5 moles of oxygen are produced.
For each mole of propane that reacts, 5 moles of oxygen are produced.

For each mole of oxygen that reacts, 3 moles of carbon dioxide are produced.

Answers

GPT-4o mini
Let's analyze the balanced chemical equation:

\[ \text{C}_3\text{H}_8 + 5\text{O}_2 \rightarrow 3\text{CO}_2 + 4\text{H}_2\text{O} \]

From this equation, we can derive the following ratios:

1. For every 1 mole of propane (C3H8) that reacts, 5 moles of oxygen (O2) are required.
2. For every 1 mole of propane that reacts, 3 moles of carbon dioxide (CO2) are produced.
3. For every 1 mole of propane that reacts, 4 moles of water (H2O) are produced.
4. For every 5 moles of oxygen that react, 3 moles of carbon dioxide are produced.

Now, let's evaluate the response options:

1. **For every 4 moles of water produced, 3 moles of propane react.** - This is incorrect. From the equation, for every 1 mole of propane, 4 moles of water are produced, so for 4 moles of water, 1 mole of propane is needed.

2. **For every 3 moles of carbon dioxide produced, 5 moles of oxygen react.** - This is incorrect. The equation shows that for every 3 moles of CO2 produced, only 5 moles of O2 are required for the 1 mole of C3H8.

3. **For each mole of propane that reacts, 5 moles of oxygen are produced.** - This is incorrect. The equation shows that for each mole of propane that reacts, 5 moles of oxygen are consumed, not produced.

4. **For each mole of oxygen that reacts, 3 moles of carbon dioxide are produced.** - This is incorrect. The equation shows that for each 5 moles of oxygen that reacts, 3 moles of carbon dioxide are produced.

Therefore, none of the provided options are correct based on the balanced equation.

If there's a desire to choose the best fit, the closest might be the second one misphrased as it even starts with the correlation, but it incorrectly states the proportions. Thus, all options have inaccuracies according to the chemical equation presented.

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