Actually H3PO4 is a molecular formula referring to the compound we know as Phosphoric acid. It doesn't indicate number of moles of H3PO4.
But the number of moles can be found out if the amount in mass or some other measurable quantity(e.g. conc. in solution) is given. The molar mass(mass of 1 mole) of H3PO4 is 98 grams. So if mass is given then it can be converted to grams and dividing by molar mass(i.e 98) we get number of moles.
moles of H3PO4 =(mass of H3PO4 in grams)/98.
1 mole of H3PO4 has ->3 moles of H atoms.
->1 mole of P atoms.
->4 moles of O atoms.
( 1 mole=6.0225 *1023 units)
There are 6.3 moles of H atoms in 2.1 moles of H3PO4. This is because there are three moles of H atoms in one mole of H3PO4.
There are 3 moles of hydrogen atoms in one mole of phosphoric acid (H3PO4). This is because there are 3 hydrogen atoms in each molecule of phosphoric acid.
In one mole of hydrogen peroxide (H2O2), there are two moles of oxygen atoms.
There is one mole of NaβΊ ions for every mole of NaCl. This is because each mole of NaCl dissociates into one mole of NaβΊ ions and one mole of Clβ» ions in solution.
Assuming complete combustion, one mole of sugar produces 11 moles of water.
There are 6.3 moles of H atoms in 2.1 moles of H3PO4. This is because there are three moles of H atoms in one mole of H3PO4.
There are 3 moles of hydrogen atoms in one mole of phosphoric acid (H3PO4). This is because there are 3 hydrogen atoms in each molecule of phosphoric acid.
One mole of FeS2 contains one mole of Fe and two moles of S.
Two moles of iodine are present in one mole of molecular iodine (I_2), which is the formula unit for iodine.
One molecule of P2O3 = 1 mole. Go to the periodic table P = 30gm x 2 = 60 gm. O= 16 gm x 3 = 48 mg. Total is 60 + 48 = 108 gm is the weight of one molecule which is also the number of grams in 1 mole (remember 1 mol = 1 mole). So since you have 37.9 grams divide this by 108 and you have .35 moles.
In one mole of hydrogen peroxide (H2O2), there are two moles of oxygen atoms.
There is one mole of NaβΊ ions for every mole of NaCl. This is because each mole of NaCl dissociates into one mole of NaβΊ ions and one mole of Clβ» ions in solution.
Zero
In one mole of CS2, there is one mole of sulfur atoms. Therefore, 3.00 moles of CS2 would contain 3.00 moles of sulfur atoms.
the Atomic Mass of FeS2 is 110. You cannot find the no. of moles in a mole of FeS2 coz it is only a mole.
it depends on how many grams of it you are dealing with
Assuming complete combustion, one mole of sugar produces 11 moles of water.