2.01x10^22 atoms x 1 mole/6.02x10^23 atoms = 0.0334 moles
1 mole has 6.023 x 1023 atoms So, in 3.05 moles there are 18.37 x 1023 atoms
1 mole of CO2 has 1 mole of carbon atoms and 2 moles of oxygen atoms. So, 25 mole of CO2 has 25 moles of carbon atoms and 50 moles of oxygen atoms.
5.75x10^24 atoms x 1 mole/6.02x10^23 atoms = 9.55 moles of Al
6.81 X 1024 atoms potassium (1 mole K atoms/6.022 X 1023) = 11.3 moles of potassium atoms ========================
1 mole equals 6.022 x 10 to the 23 molecules
3.49 x 10e22 carbon atoms x 1 mole of carbon / 6.02 x 10e23 carbon atoms equals 3.49/6.02 X 10e22/10e23 equals 0.579 X 10e-1 equals 5.79 X 10e-2 moles equals 0.0579 moles (3 significant figures)
2.80x10^24 atoms x 1 mol/6.02x10^23 atoms = 4.65 moles
(2.16x10^24 atoms) x ( 1 mole/ 6.022x10^23 atoms) = 0.3586848223x10^1 which your answer should be 3.59 moles
(2.16x10^24 atoms) x ( 1 mole/ 6.022x10^23 atoms) = 0.3586848223x10^1 which your answer should be 3.59 moles
1 mole of CO2 has 1 mole of carbon atoms and 2 moles of oxygen atoms. So, 0.000831 mole of CO2 will have 0.000831 mole of carbon atoms.
2.01x10^22 atoms x 1 mole/6.02x10^23 atoms = 0.0334 moles
1 mole has 6.023 x 1023 atoms So, in 3.05 moles there are 18.37 x 1023 atoms
1 mole of CO2 has 1 mole of carbon atoms and 2 moles of oxygen atoms. So, 25 mole of CO2 has 25 moles of carbon atoms and 50 moles of oxygen atoms.
1
5.0x10^25 * (1 mol / 6.022x10^23 atoms) = 83 moles of iron.
NH3 is balanced at 1:3, so in 3 moles NH3 there are 3*3 = 9 moles H atoms