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The number of atoms per mole of any element, or the number of molecules per mole of any compound, is 6.0223 x 1023 atoms. Therefore, by multiplication, 6.0223 x 1023 * 5 = 3.01107075 x 1024 atoms in 5 moles of Sodium (Na).
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoI am assuming that the question refers to ormual inits in 0.5M of sodium chloride. Obviously there are no NACL units in elemnetal sodium.
the obvious answer is 0.5 assuming that what is meant by a formula unit is the same as gram molecule.
However if you mean the number of sodium chloride "molecules"(bearing in min in 0.5m the answer is Avogadros number divide by 2 so 3.01 X 1023
Formula unit is not a very precise term.
Kai Neitor
Wiki User
∙ 11y agoThe formula for converting moles to atoms is number of moles × Avogadro's constant
Avogadro's constant = 6.022 × 1023
0.75 mole Na × (6.022 × 1023) = 4.517 × 1023 atoms Na
Wiki User
∙ 14y agoThe formula for converting moles to atoms is number of moles × Avogadro's constant
Avogadro's constant = 6.02 × 1023
0.5 mole Na × (6.02 × 1023) = 3.01 × 1023 atoms Na
Wiki User
∙ 13y agoThe metals such as sodium do not have molecular formulas that contain more than one atom of the metal. Therefore, the answer is twice Avogadro's number = about 1.2044 X 1024.
Wiki User
∙ 10y agoOne mole of sodium contains 6.02 x 1023 Na atoms. This is the avogadro constant. Thus in two moles of sodium there would be double of that, which is 1.20 x 1024.
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