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.
The moles number of water 12; the chemical formula is KAl(SO4)2.12H2O.
5 mole copper (6.022 X 1023/1 mole Cu) = 3 X 1024 atoms of copper -----------------------------------
1 mole of helium weighs 4.0026 g. So 2 mole will weigh 8.0056 g.
1 mole Zn3(PO4)2 (2 moles P/1 mole Zn3(PO4)2) 2 moles phosphorous ===============
In water (H2O), there are 2 moles of hydrogen (H) atoms for every 1 mole of water. Therefore, in 2.95 moles of water, there are 2 * 2.95 = 5.9 moles of hydrogen 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.
Since a mole is 6.02 x 1023, 7.5 moles of Mn has (7.5 moles)(6.02 x 1023 parts/mole) = 4.5 x 1024 particles.
The moles number of water 12; the chemical formula is KAl(SO4)2.12H2O.
Since ammonia has a chemical formula of NH3, it contains one mole of nitrogen and three moles of hydrogen per mole of ammonia. Therefore, 3 moles of ammonia contain 3 moles of nitrogen and 9 moles of hydrogen atoms.
5 mole copper (6.022 X 1023/1 mole Cu) = 3 X 1024 atoms of copper -----------------------------------
1 mole
There are 5 moles of sulfur in 5 moles of H2SO4, as there is 1 mole of sulfur in each mole of H2SO4.
3.5 moles CaCO3 (1 mole carbon/1 mole CaCO3) = 3.5 moles
1 mole of helium weighs 4.0026 g. So 2 mole will weigh 8.0056 g.
There is 1 mole present in 1 lb-mole.
1 mole Zn3(PO4)2 (2 moles P/1 mole Zn3(PO4)2) 2 moles phosphorous ===============
9 moles (there are four oxygen atoms for every mol of BaSO4, so you multiply 2.25 by 4)