6.022E23
2.01x10^22 atoms x 1 mole/6.02x10^23 atoms = 0.0334 moles
5.75x10^24 atoms x 1 mole/6.02x10^23 atoms = 9.55 moles of Al
2 moles of benzene gives 12 moles of hydrogen atoms since benzene is C6H6
2.95 mole H2O (2 moles H/1 mole H2O) = 5.90 moles hydrogen ------------------------------
1.50 moles C9H8O4 (9 moles C/1 mole C9H8O4)(6.022 X 1023/1 mole C)= 8.13 X 1024 carbon atoms===================
(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 Li₂O contains 2 moles of lithium (Li) atoms and 1 mole of oxygen (O) atoms. Therefore, in 1 mole of Li₂O, there are a total of 3 moles of atoms.
2.01x10^22 atoms x 1 mole/6.02x10^23 atoms = 0.0334 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.
5.75x10^24 atoms x 1 mole/6.02x10^23 atoms = 9.55 moles of Al
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)
1 mol has 6,022 140 857.10e23 atoms (The number of Avogadro).4 moles of sodium have 24,088 563 428.10e23 atoms.
1. Three moles of sodium contain 18,06642387.1023 atoms. 2. The mass of three moles of sodium is 68,97 grams.
2 moles of benzene gives 12 moles of hydrogen atoms since benzene is C6H6
five
General principle of mole: One mole of particles of any material ALWAYS contains 6.022 * 10^23 particles. Thus no matter whether it is gold atoms or sand or raindrops or anything countable. It is like 1 dozen equals 12 and 1 gross equals 144.