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First find the atomic numbers of phosphorus and calcium (x3)
Then add the numbers together to find the overall atomic number
Next divide the atomic number of phosphorus by the overall atomic number and multiply by the number.
P=15
Cl=20x3=60
60+15=75
15/75= 0.2x100=20%
I think this is right, hope it helps
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What is the percent composition by mass of phosphorous in ammonium phosphate?
Ammonium phosphate ((NH4)3PO4) contains one phosphorus atom in the formula. To calculate the percent composition by mass of phosphorus, you need to find the molar mass of phosphorus and the molar mass of the entire compound. Then, divide the molar mass of phosphorus by the molar mass of the compound and multiply by 100 to get the percentage.
What is the percent composition of phosphorus in Zn3(PO4)2?
To find the percent composition of phosphorus in Zn3(PO4)2, calculate the molar mass of PO4 (phosphate) first. The molar mass of PO4 is 1 * P (phosphorus) + 4 * O (oxygen). Then, divide the molar mass of P by the molar mass of the entire Zn3(PO4)2 compound and multiply by 100 to get the percentage.
How many moles of phosphorus?
The number of moles of phosphorus depends on the given quantity or mass of phosphorus. To calculate the number of moles, you need to know the molar mass of phosphorus (about 30.97 g/mol) and the mass of the sample. You can then use the formula moles = mass/molar mass to find the number of moles.
How many grams of phosphorus are in 500 grams of calcium phosphide?
To find the grams of phosphorus in calcium phosphide, first find the molar mass of calcium phosphide (Ca3P2 = 3Ca + 2P = 340.08 + 230.97 = 276.42 g/mol), then calculate the mass percent of phosphorus in calcium phosphide (2P/276.42 g/mol * 100%). Finally, determine the grams of phosphorus in 500 grams of calcium phosphide by multiplying the mass percent by 500 grams.
What mass of phosphorus is contained in 45.3 g of ammonium phosphate?
To calculate the mass of phosphorus in 45.3 g of ammonium phosphate, you need to know the molar mass of ammonium phosphate (NH4)3PO4, which is approximately 149.09 g/mol. The mass percentage of phosphorus in ammonium phosphate is 30.97%. Therefore, the mass of phosphorus in 45.3 g of ammonium phosphate can be calculated as: 45.3 g x (30.97/100) = 14.02 g of phosphorus.
What is the percent composition by mass of phosphorous in ammonium phosphate?
Ammonium phosphate ((NH4)3PO4) contains one phosphorus atom in the formula. To calculate the percent composition by mass of phosphorus, you need to find the molar mass of phosphorus and the molar mass of the entire compound. Then, divide the molar mass of phosphorus by the molar mass of the compound and multiply by 100 to get the percentage.
Which is the percent composition of phosphorus in Zn3(PO4)2?
To find the percent composition of phosphorus in Zn3(PO4)2, calculate the molar mass of the entire compound first. The molar mass of Zn3(PO4)2 is 386.06 g/mol. Then, determine the molar mass of phosphorus in the compound, which is 283.89 g/mol. Finally, divide the molar mass of phosphorus by the molar mass of the compound and multiply by 100 to get the percentage. In this case, the percent composition of phosphorus in Zn3(PO4)2 is approximately 73.65%.
What is the percent composition of phosphorus in the compound Ca3(PO4)2?
The molar mass of Ca3(PO4)2 is 310.18 g/mol. The molar mass of phosphorus is 30.97 g/mol. To find the percent composition of phosphorus, calculate the molar mass contribution of phosphorus in Ca3(PO4)2 and divide it by the total molar mass of the compound, then multiply by 100. (30.97 * 2) / 310.18 * 100 ≈ 20.01% Therefore, the percent composition of phosphorus in Ca3(PO4)2 is approximately 20.01%.
What is the percent composition of phosphorus in Zn3(PO4)2?
To find the percent composition of phosphorus in Zn3(PO4)2, calculate the molar mass of PO4 (phosphate) first. The molar mass of PO4 is 1 * P (phosphorus) + 4 * O (oxygen). Then, divide the molar mass of P by the molar mass of the entire Zn3(PO4)2 compound and multiply by 100 to get the percentage.
What is the percent composition of P?
The percent composition of phosphorus (P) in a compound is calculated by dividing the mass of phosphorus by the total mass of the compound and multiplying by 100. For example, in PCl₅ (phosphorus pentachloride), the percent composition of P would be calculated as the mass of P divided by the total mass of PCl₅, multiplied by 100.
How many grams are in the 1.204 1020 atoms of phosphorus used to coat your television screen?
To calculate the grams of phosphorus, you need to know the molar mass of phosphorus and then use Avogadro's number to convert from atoms to grams. The molar mass of phosphorus is approximately 30.97 g/mol. Therefore, you can calculate the grams of phosphorus using this information.
How many moles of phosphorus?
The number of moles of phosphorus depends on the given quantity or mass of phosphorus. To calculate the number of moles, you need to know the molar mass of phosphorus (about 30.97 g/mol) and the mass of the sample. You can then use the formula moles = mass/molar mass to find the number of moles.
How many grams of phosphorus are in 500 grams of calcium phosphide?
To find the grams of phosphorus in calcium phosphide, first find the molar mass of calcium phosphide (Ca3P2 = 3Ca + 2P = 340.08 + 230.97 = 276.42 g/mol), then calculate the mass percent of phosphorus in calcium phosphide (2P/276.42 g/mol * 100%). Finally, determine the grams of phosphorus in 500 grams of calcium phosphide by multiplying the mass percent by 500 grams.
What is the equation used to calculate percent by mass?
Percent by mass = (100) times (mass of the ingredient of interest) divided by (mass of the whole mixture)
How do you calculate the percent by mass of an element in a compound?
To calculate the percent by mass of an element in a compound, you divide the mass of the element by the total mass of the compound and then multiply by 100. This gives you the percentage of the compound's mass that is made up of that specific element.
What is the percent composition of nitrogen in NH42HPO4?
To calculate the percent composition of nitrogen in NH4 2HPO4, first calculate the molar mass of NH4 2HPO4 ( nitrogen: 14.01 g/mol, hydrogen: 1.01 g/mol, phosphorus: 30.97 g/mol, oxygen: 16.00 g/mol). Then, find the molar mass of nitrogen in NH4 2HPO4 ( nitrogen: 14.01 g/mol x 2). Finally, divide the molar mass of nitrogen by the molar mass of NH4 2HPO4 and multiply by 100 to get the percent composition of nitrogen.
How do you calculate the percent water in a hydrate?
To calculate the percent water in a hydrate, you first determine the mass of water in the hydrate by subtracting the mass of the anhydrous compound from the mass of the hydrate. Then, divide the mass of water by the total mass of the hydrate and multiply by 100 to get the percentage.
