The mass of 1 mole of phosphorus atoms can be expressed as grams per mole (g/mol). This is also known as molar mass. If we check on the periodic table, the molar mass of phosphorus is about 30.97 g/mol.
To find the mass of 1 mole of phosphorus atoms, we can use the formula:
m=nM
where:
m = mass (grams)
n = number of moles
M = molar mass
m=nM
m=(1 mol)(30.97 g/mol)
m=(1 mol)(30.97 g/mol)
m=(1)(30.97 g)
m=30.97 g
m=30 g
Note:
The final answer should always have the correct number of significant figures.
∴, the mass of 1 mole of phosphorus atoms is approximately 30 g.