Answer :
The number of atoms of phosphorus in copper(II) phosphate is 7.23 x 10²⁴ atoms.
What is number of moles?
The number of moles of a substance equals the ratio of its given mass in a chemical reaction to the mass of one mole of that substance.
One mole of any substance equals Avogadro's number, that is, 6.023 × 10²³ atoms.
Number of moles of phosphorous in the compound
copper(II) phosphate is written as Cu₃(PO₄)₂.
1 mole of copper(II) phosphate = 2 moles of phosphorous
6.0 moles of copper(II) phosphate = ?
= 2 x 6
= 12 moles of phosphorous
1 mole of phosphorous = 6.023 x 10²³ atoms
12 moles of phosphorous = ?
= 12 x 6.023 x 10²³
= 7.23 x 10²⁴ atoms.
Thus, the number of atoms of phosphorus in copper(II) phosphate is 7.23 x 10²⁴ atoms.
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