Each O2 molecule has 2 oxygen atoms. Number of atoms = moles x Avogadro's number x 2 = 2 moles x 6.022 x 10^23 molecules/mole x 2 = 1.2044 x 10^24 atoms.
Questions & Step-by-step Solutions
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Q
Q: How many atoms are in 2 moles of oxygen gas (O2)?
Solution: Each O2 molecule has 2 oxygen atoms. Number of atoms = moles x Avogadro's number x 2 = 2 moles x 6.022 x 10^23 molecules/mole x 2 = 1.2044 x 10^24 atoms.
Steps: 4
Step 1: Understand that 1 mole of any substance contains Avogadro's number of molecules, which is approximately 6.022 x 10^23.
Step 2: Recognize that oxygen gas (O2) is made up of 2 oxygen atoms in each molecule.
Step 3: Calculate the number of molecules in 2 moles of O2 by multiplying the number of moles (2) by Avogadro's number (6.022 x 10^23).
Step 4: Multiply the number of molecules (from Step 3) by 2 to find the total number of oxygen atoms, since each molecule of O2 has 2 atoms.
