Question

How do you calculate the number of moles of C₂H₆in 8.50 x 10²⁴ molecules of C₂H₆?

Answer 1

To calculate the moles of C₂H₆ from molecules, divide the number of molecules by Avogadro's number. In this case, dividing 8.50 x 10²⁴ molecules by 6.022 x 10²⁳ molecules/mol gives 14.12 moles of C₂H₆.

Step-by-step explanation:

Calculating Moles from Molecules

To calculate the number of moles of C₂H₆ from a given number of molecules, follow these steps:

1. Identify the number of molecules you have. In this case, it is 8.50 x 10²⁴ molecules of C₂H₆.
2. Use Avogadro's number to calculate moles. Avogadro's number (6.022 x 10²⁳) is the number of units in one mole of any substance (defined as its molecular weight in grams).
3. Divide the total number of molecules by Avogadro's number to find the number of moles:
   Number of moles = (8.50 x 10²⁴ molecules C₂H₆) / (6.022 x 10²⁳ molecules/mol).
4. Perform the calculation to find the moles of C₂H₆.

When you calculate this out, you find that there are 14.12 moles of C₂H₆ (the actual result of the division may vary slightly depending on the precision of your calculation).