The mass of phosphorus of any sample of calcium phosphate is the mass of the same multiplied by the percentage that phosphorus makes up of that sample.
(mass of sample) x (mass of phosphorus/total mass)
Therefore we must look at the chemical formula of the substance in question: Ca3(PO4)2. From this we can see that there are 2 phosphorus atoms attributing mass to the total molecule. The formula becomes:
500 g x 2x30.97 g/mol/310.17 g/mol = 99.8 g
molar mass of phosphorus: 30.97 g/mol
molar mass of calcium phosphate: 310.17 g/mol
total mass: 500 g
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There is said to be about 600 grams of nitrogen in 1.00 pound of ammonium and 130 pounds of phosphorus available in 1.00 pounds of ammonium phosphate.
To find the mass in grams of 2.3 x 10^-4 moles of calcium phosphate (Ca3(PO4)2), you first need its molar mass. The molar mass of calcium phosphate is approximately 310.18 g/mol. Therefore, the mass can be calculated as follows: 2.3 x 10^-4 moles × 310.18 g/mol ≈ 0.0713 grams.
735 g of Ca3(PO4)2 are obtained.
120
There are approximately 1.37 grams of calcium in one tablespoon of calcium citrate powder.