Because copper (II) cations have a charge of +2 and phosphate anions have a charge of -3, the formula of anhydrous* copper (II) phosphate is Cu3(PO4)2. This shows that each formula unit contains 2 atoms of phosphorus. Therefore, the atoms of phosphorus in 4.8 formula units is 4.8 x Avogadro's Number, or about 2.9 X 1024 atoms, to the justified number of significant digits.
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The answer to the problem will be the same if hydrated copper (II) phosphate is assumed, because the water of hydration contains no phosphorus and the quantity is specified in moles or formula units, but the formula would be different.
The number of phosphorus atoms is 63,181.10e23.
Since 14 (4+10) moles of P4O10 contains 4 moles of Phosphorus, 8 moles of P4O10 will contain :: (8 x 4)/14 = 2.286 moles of Phosphorus
1.20x10^24 atoms x 1 mole/6.02x10^23 atoms = 1.99 moles
One mol of copper is 6.02 x1023 atoms. So 3.44 x 1023 would be 0.571 moles.
Take that number of copper atoms and divide by "Avogadro's constant," which is the number of representative particles (in this case, atoms) in 1 mole of any substance. Here's the math: 1.8x10e24 / 6.02x10e23 = approximately 3 moles.
it is 20456678
The number of phosphorus atoms is 63,181.10e23.
there are 0.675moles
Since 14 (4+10) moles of P4O10 contains 4 moles of Phosphorus, 8 moles of P4O10 will contain :: (8 x 4)/14 = 2.286 moles of Phosphorus
The gram atomic mass of phosphorus is 30.9738, and by definition, a mole of such atoms contains Avogadro's Number of atoms. Therefore, 100 g of phosphorus contains 100/30.9738 or 3.23 moles, to the justified number of significant digits.
1.20x10^24 atoms x 1 mole/6.02x10^23 atoms = 1.99 moles
4.00
3CuCl2 (aq)+ 2Na3PO4 (aq)> 6Na+ (aq)+ 6Cl- (aq)+ Cu3(PO4)2 (s) Or, 3 moles of copper (II) chloride and 2 moles of sodium phosphate form 6 moles of sodium ions, 6 moles of chloride ions, and a mole of copper (II) phosphate, which is insoluble, and precipitates out of the solution.
Phosphorus pentachloride is the chemical name for the molecular formula of PCl5. At Standard Temperature and Pressure (STP) one mole corresponds to Avogadro's number of 6.02x10^23 particles. Using molar ratios we know that for every 1 mole of PCl5 we have 1 mole of P. a ratio of 1:1. Answering this question therefore is multiplying our given quantity of 2.97 moles by 6.02x10^23 yielding out answer of 1.79x10^24 atoms.
Approx. 10e-17 moles.
The number of copper atoms is 79,49.10e23.
17.54 mg