You will need to specify the mass of C6H6 in order to calculate a number of moles.
If you know the mass, the general formula is:n=m/M,
where n is the number of moles, m the mass of C6H6 and M the molar mass (78.11g/moles)
In a mol of a substance there are 6.022E23 molecules. There are 12 atoms in each molecule of C6H6 (benzene). Thus, in a mole of benzene there are 6.022E23 * 12 atoms.
There are 9.12 moles of hydrogen atoms in 4.56 moles of NH2NH2. Each NH2NH2 molecule contains 2 hydrogen 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 24 moles of hydrogen in 4 moles of CH4 because each molecule of CH4 contains 4 hydrogen atoms. Therefore, you have 24 moles x 6.022 x 10^23 atoms/mol = 1.4448 x 10^25 atoms of hydrogen.
Just moles against the ratio of hydrogen atoms in compound then against Avogadro's number. Like this 0.09 moles H2SO4 (2 moles H/1 mole H2SO4)(6.022 X 10^23/1 mole H) = 1.1 X 10^23 hydrogen atoms
there are two Carbon Atoms and six Hydrogen atoms
In a mol of a substance there are 6.022E23 molecules. There are 12 atoms in each molecule of C6H6 (benzene). Thus, in a mole of benzene there are 6.022E23 * 12 atoms.
Seventeen moles of hydrogen correspond to 204,75.10e23 atoms.
2 moles of benzene gives 12 moles of hydrogen atoms since benzene is C6H6
There are 9.12 moles of hydrogen atoms in 4.56 moles of NH2NH2. Each NH2NH2 molecule contains 2 hydrogen 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 24 moles of hydrogen in 4 moles of CH4 because each molecule of CH4 contains 4 hydrogen atoms. Therefore, you have 24 moles x 6.022 x 10^23 atoms/mol = 1.4448 x 10^25 atoms of hydrogen.
Since propane has the formula C3H8, each mole of propane will have 8 moles of hydrogen atoms, so 5 moles of propane will contain 5x8=40 moles of hydrogen.
1molecule of C2H6 contains 2 carbon atoms
The answer is 2,17 moles carbon.
There are 12 atoms of hydrogen in 3 moles of CH4. CH4 consists of one carbon atom and four hydrogen atoms. Since each mole of CH4 has 4 hydrogen atoms, 3 moles would have 3 * 4 = 12 hydrogen atoms in total.
Just moles against the ratio of hydrogen atoms in compound then against Avogadro's number. Like this 0.09 moles H2SO4 (2 moles H/1 mole H2SO4)(6.022 X 10^23/1 mole H) = 1.1 X 10^23 hydrogen atoms