Convert Molecules CO2 to Moles

To convert 12.31 x 10^15 molecules of CO2 to moles, we use Avogadro's number, which is approximately 6.022 x 10^23 molecules per mole.

Step 1: Determine the conversion factor
1 mole CO2 = 6.022 x 10^23 molecules CO2

Step 2: Set up the conversion
12.31 x 10^15 molecules CO2 * (1 mole CO2 / 6.022 x 10^23 molecules CO2)

Step 3: Calculate the result
12.31 x 10^15 / 6.022 x 10^23 ≈ 2.04 x 10^-8 moles

Step 4: Determine the correct significant figures
The original number, 12.31 x 10^15, has four significant figures, so the final answer should also have four significant figures. Therefore, the result is approximately 2.04 x 10^-8 moles of CO2.

For more practice and a better understanding of moles, grams, and other related concepts, you can check out the following resources:

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