For the compound C13H18O2 (ibuprofen) determine the molecules of ibuprofen that contains 15 mol of hydrogen?

I am missing a step and I am trying to figure it out.

I tried 15 mol of H x 1 mol C13 H18 O2 divided by 1 mol of H and got 15 MOL C13 H18 O2 then did 15 mol of C13 H18 02 x 6.022 x10 23 divided by 1 mol of C13 H18 O2 and got 9.03 x10 24 but that is incorrect

Won't 1 mole C13H18O2 contain 18 moles H atoms. So we want

1 mole C13H18O2 x (15 mole H atoms/18 moles H atoms) = ?? moles ibuprofen.
Then 1 mole ibuprofen contains 6.022E23 molecules so 15/18 mole will contain how many molecules.

To determine the number of molecules of ibuprofen that contain 15 mol of hydrogen, you need to consider the mole ratio between the elements in the compound.

The molecular formula of ibuprofen is C13H18O2, which means there are 13 carbon atoms, 18 hydrogen atoms, and 2 oxygen atoms in each molecule.

Here's how you can calculate the answer:

1. Start with the given number of moles of hydrogen (15 mol H).
2. Use the mole ratio between hydrogen and ibuprofen, which is 18 mol H per 1 mol C13H18O2. This ratio comes from the subscript coefficient in the chemical formula.
So, multiply the given moles of H by the conversion factor: (15 mol H) x (1 mol C13H18O2 / 18 mol H).
This step cancels out the unit of moles of hydrogen and gives you the moles of ibuprofen.
3. Now, to find the number of molecules of ibuprofen, you need to multiply the moles of ibuprofen by Avogadro's number, which is approximately 6.022 x 10^23 molecules per mole.
So, multiply the moles of C13H18O2 by the conversion factor: (result from step 2) x (6.022 x 10^23 molecules / 1 mol C13H18O2).
This step cancels out the unit of moles and gives you the number of molecules of ibuprofen.

By following these steps, you will get the correct answer.

Son it would be 5.0 x10 23 molecules of C13H1802

Chemistry