three moles of phosphoric acid contains how many moles of oxygen atoms
H3PO4.
One mol contains 4 mols O atoms; therefore, three mols H3PO4 will contain .....
12?
right
To determine the number of moles of oxygen atoms in three moles of phosphoric acid (H3PO4), we first need to consider the chemical formula of phosphoric acid.
Phosphoric acid (H3PO4) consists of one phosphorus atom (P), four oxygen atoms (O), and three hydrogen atoms (H). From the balanced chemical formula, we can determine that there are four oxygen atoms in one molecule of phosphoric acid.
Therefore, to find the number of moles of oxygen atoms, we need to multiply the number of moles of phosphoric acid by the ratio of the number of oxygen atoms to the number of molecules of phosphoric acid.
Given that there are four oxygen atoms in one molecule of phosphoric acid, the number of moles of oxygen atoms can be calculated as follows:
Number of moles of oxygen atoms = (Number of moles of phosphoric acid) x (Number of oxygen atoms per molecule of phosphoric acid)
In this case, the number of moles of phosphoric acid is three moles. Substituting this value into the equation:
Number of moles of oxygen atoms = 3 moles x 4 oxygen atoms/molecule
Number of moles of oxygen atoms = 12 moles
Therefore, three moles of phosphoric acid contains 12 moles of oxygen atoms.