This molecule contain two aluminium atoms.
17 Al 2 S 3 O 12
The chemical formula of aluminium nitrate is Al(NO3)3. This compound contain 3 different elements: Al, O, N and 13 atoms.
Each of the hydrogen atoms in H2 has an oxidation number of 0.
7 atoms
1 mole Al = 6.022 x 1023 atoms Al 0.2mol Al x 6.022 x 1023 atoms Al/1mol Al = 1 x 1023 atoms Al (rounded to 1 significant figure)
By definition, 1 mole of anything is 6.022 x 1023 particles of that thing. So, 1 mole of Al = 6.022 x 1023 atoms Al 7.5mol Al x (6.022 x 1023 atoms Al/1mol Al)=4.5165 x 1024 atoms Al
Al(NO3)3 has 9 atoms of oxygen.
3.85 atoms Al (1 mole atoms Al/6.022 X 10^23) = 6.39 X 10^-24 moles aluminum ( though 3.85 atoms seems unlikely )
1mol Al = 26.981538g Al1mol Al atoms = 6.022 x 1023 atomsConvert grams to moles.1g Al x 1mol/26.981538g = 0.04mol AlConvert moles to atoms.0.04mol Al x 6.022 x 1023 atoms/mol = 2 x 1022 atoms Al
5.75x10^24 atoms x 1 mole/6.02x10^23 atoms = 9.55 moles of Al
about 4million
9.55 mol of Al