A mole of any substance has 6.022 x 1023 particles(atoms, molecules or ions) of that substance.
So 5 moles of chromium would have
6.022 x 1023 x 5 atoms = 30.11 x 1023 atoms.
5 Cr2O3 = 15 H2 = 10 Cr + 15 H2O so 15 moles of hydrogen gas
It is 1.20 x 10 ^23.
You multiply 2 moles times 6.022x10^23 atoms, which is Avogrado's number.
If this compound existed it would be called chromium heptoxide. This would imply an impossibly high oxidation number for chromium. Chromium forms a number of oxides including Cr2O3 and a chromium(VI) oxide, chromium oxide peroxide.
Some chromium compounds: chromium bromides, chromium chlorides, chromium fluorides, chromium iodides, potassium dichromate, sodium chromate, chromium oxide, chromium sulfide, etc.
Chromium oxide is the light green inorganic compound coCr203. When dissolved in acid, it produces the hydrated chromium ions [Cr(H2O)6]3+.
CrO3 is Chromium(VI) oxide also called Chromium trioxide
Two Chromium Atoms, and 3 Oxygen Atoms. (Cr2O3)
chromium oxide
Cr2O3 is, Chromium (III) oxide or simply Chromium oxide.
The compound Cr2O3 is chromium(III) oxide. It is a naturally inorganic occurring compound and it is used primarily as green pigment.
Ruby is aluminium oxide; chromium is only a natural dopant, in traces. The concentration of chromium is not constant in rubies.
Chromium oxide may refer to:Chromium(II) oxide, CrOChromium(III) oxide, Cr2O3Chromium dioxide (chromium(IV) oxide), CrO2Chromium trioxide (chromium(VI) oxide), CrO3
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Chromium chlorides, Chromite (FeCr2O4), and Chromium oxide (Cr2O3).
Chromium
If this compound existed it would be called chromium heptoxide. This would imply an impossibly high oxidation number for chromium. Chromium forms a number of oxides including Cr2O3 and a chromium(VI) oxide, chromium oxide peroxide.
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Ruby is aluminium oxide (Al2O3) with chromium as an impurity.
Some chromium compounds: chromium bromides, chromium chlorides, chromium fluorides, chromium iodides, potassium dichromate, sodium chromate, chromium oxide, chromium sulfide, etc.