12 moles
2.5 moles H2O (2 moles H/1 mole H2O) = 5 moles of hydrogen
There are 1 mole of carbon atoms in 12g of carbon. This is because the molar mass of carbon is 12 g/mol, so 12g of carbon is equivalent to 1 mole of carbon atoms.
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.
To calculate the moles of each element, you need to divide each mass by the molar mass. The molar mass of carbon is 12g/mol and oxygen is 16g/mol. 12g of carbon divided by 12g/mol gives 1 mole of carbon. 32g of oxygen divided by 16g/mol gives 2 moles of oxygen.
12 g of potassium is equivalent to 0,307 moles.
12 g NF3 equals 0,17 moles.
The molecular weight of sodium hydroxide is 40g/mol. To get the amount of moles, you have to divide the weight by molecular mass. 12g / 40 is 0.3 moles. This is 300 millimoles.
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 1 mole of carbon atoms in 12g of carbon. This is because the molar mass of carbon is 12 g/mol, so 12g of carbon is equivalent to 1 mole of carbon 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
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.
To calculate the moles of each element, you need to divide each mass by the molar mass. The molar mass of carbon is 12g/mol and oxygen is 16g/mol. 12g of carbon divided by 12g/mol gives 1 mole of carbon. 32g of oxygen divided by 16g/mol gives 2 moles of oxygen.