Given/Known:
1mole of H2 = 2.01588g H2
1mole of H2 = 6.022 x 1023 molecules H2
1) Convert molecules of H2 to moles of H2 by doing the following calculation.
9.4 x 1025 molecules H2 x (1mol H2/6.022 x 1023 molecules H2) = 156mol H2
2) Convert the moles of H2 to mass in grams of H2.
156mol H2 x (2.01588g H2/1mol H2) = 314g H2
210.3 moles of H2 are contained in one gallon of H2O
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.
2.5 moles H2O (2 moles H/1 mole H2O) = 5 moles of hydrogen
Methane (CH4) has four atoms of hydrogen per molecule. If there are 3 moles of methane, then there are 12 moles of hydrogen.
There are 9.12 moles of hydrogen atoms in 4.56 moles of NH2NH2. Each NH2NH2 molecule contains 2 hydrogen atoms.
210.3 moles of H2 are contained in one gallon of H2O
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.
0.1868 moles
2.5 moles H2O (2 moles H/1 mole H2O) = 5 moles of hydrogen
Seventeen moles of hydrogen correspond to 204,75.10e23 atoms.
There are 0.5 moles of hydrogen in 1g, as the molar mass of hydrogen is 2g/mol.
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.
0,565 moles
This is a chemical calculation. there are 3.267 moles in this solution.
Methane (CH4) has four atoms of hydrogen per molecule. If there are 3 moles of methane, then there are 12 moles of hydrogen.
There are 9.12 moles of hydrogen atoms in 4.56 moles of NH2NH2. Each NH2NH2 molecule contains 2 hydrogen atoms.
5,26 moles of oxygen contain 31,676.10e23 atoms.