Which of the following samples contains the largest number of hydrogen atoms?Group of answer choices4.0 moles of C3H62.0 moles of C6H163.0 moles of C3H86.0 moles of C2H4

To determine which sample contains the largest number of hydrogen atoms, we need to calculate the number of hydrogen atoms in each sample. We can do this by multiplying the number of moles by Avogadro's number (6.022 x 10^23 atoms/mole) and the number of hydrogen atoms in each molecule.

1. For 4.0 moles of C3H6: Number of hydrogen atoms = 4.0 moles * 6.022 x 10^23 atoms/mole * 6 H/molecule = 1.445 x 10^25 atoms

2. For 2.0 moles of C6H16: Number of hydrogen atoms = 2.0 moles * 6.022 x 10^23 atoms/mole * 16 H/molecule = 1.927 x 10^25 atoms

3. For 3.0 moles of C3H8: Number of hydrogen atoms = 3.0 moles * 6.022 x 10^23 atoms/mole * 8 H/molecule = 1.445 x 10^25 atoms

4. For 6.0 moles of C2H4: Number of hydrogen atoms = 6.0 moles * 6.022 x 10^23 atoms/mole * 4 H/molecule = 1.445 x 10^25 atoms

So, the sample with 2.0 moles of C6H16 contains the largest number of hydrogen atoms.