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Answered 2010-06-23 05:39:02

Since molar mass of hydrogen is 1g , the no. of moles = mass of hydrogen given.

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No. of moles= Given mass of substance/Molar mass of substance

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There are two moles of hydrogen molecules and 4 moles of hydrogen atoms.




14 grams hydrogen (1 mole H/1.008 grams) = 13.89 moles hydrogen, which you can call 14 moles of hydrogen


18 moles of atomic hydrogen or 9 moles of molecular hydrogen is needed.


Answer: 7 moles hydrogen and 3,5 moles oxygen.


N2 + 3H2 -----> 2NH3 so 3 moles of hydrogen produce 2 moles of ammonia. Therefore 12.0 moles of hydrogen will produce 8 moles of ammonia.


Methane (CH4) has four atoms of hydrogen per molecule. If there are 3 moles of methane, then there are 12 moles of hydrogen.


8 moles of Hydrogen molecules reacts with 4 moles of Oxgen molecules to produce 8 moles of water8 moles of Hydrogen atoms reacts with 4 moles of Oxgen atoms to produce 4 moles of water


2.5 moles H2O (2 moles H/1 mole H2O) = 5 moles of hydrogen


17.32 moles H2O (2 moles H/1 mole H2O) = 34.64 moles hydrogen


You can figure this question out by looking up quinine to find its chemical formula. The number of moles of hydrogen will be the number of hydrogen in the chemical formula. Once you see the chemical formula is C20H24N2O2 then you know that there are 24 moles of hydrogen for every one mole of quinine.


1.5 moles of Hydrogen. In every mole of H2SO4 (Sulfuric Acid) there are 2 moles of Hydrogen atoms. So, in .75 moles of Sulfuric Acid, there would be 1.5 (double the moles of sulfuric acid) moles of Hydrogen.


You just have to find the atomic number of hydrogen and multiply it by the number of moles you have.


2,00 moles of ammonia (NH3) have 3 moles of hydrogen.


One mole C2H6 has 2 moles of carbon and 6 moles of hydrogen.


80g of Carbon = 6.6607 moles 20g of Hydrogen = 19.8424 moles


Quinine: C20H24N2O21 mole Quinine contains 24 moles of hydrogen0.8 moles of Quinine contains 24*0.8 = 19.2 moles of hydrogen



One mole of water contains two moles of hydrogen.



Seventeen moles of hydrogen correspond to 204,75.10e23 atoms.


2 moles of benzene gives 12 moles of hydrogen atoms since benzene is C6H6


Well if one mole of water = 2 moles of hydrogen and 1 mole of oxygen, than 2moles of water = 4 moles of hydrogen and 2moles of oxygen.



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