How many atoms of H are in 6.0 moles of H2O?
A. 7.22 x 1024 atoms
B. 7.12 x 1027 atoms
C. 7.32 x 1024 atoms
D. 7.72 x 1024 atoms
A
Why did you change screen names? I agree with the answer.
my grandmother was being funny
To determine the number of atoms of hydrogen in a given number of moles of H2O, you need to use Avogadro's number and the stoichiometry of the chemical formula.
The chemical formula for water (H2O) tells us that there are two hydrogen atoms for every one water molecule. Therefore, we can set up a conversion factor to find the number of hydrogen atoms:
1 mole of H2O = 2 moles of H
Next, use Avogadro's number, which states that there are 6.022 x 10^23 particles (molecules, atoms, etc.) in one mole of any substance.
So, for 1 mole of H, there are 2 x (6.022 x 10^23) = 12.044 x 10^23 hydrogen atoms.
To find the number of atoms in 6.0 moles of H2O, multiply the number of moles by the number of atoms per mole:
6.0 moles H2O x 12.044 x 10^23 atoms/mole = 7.22 x 10^24 atoms
Therefore, the correct answer is option A. 7.22 x 10^24 atoms.