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
Quinine has the chemical formula C20H24N2O2. To determine the number of moles of hydrogen in 1.8 moles of quinine, we note that each molecule of quinine contains 24 hydrogen atoms. Therefore, in 1.8 moles of quinine, there are 1.8 moles × 24 moles of hydrogen = 43.2 moles of hydrogen.
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.