How many total atoms are in 0.560 g of P2O5

16.499 * 10∧ 21 atoms

Explanation:

Given dа ta:

mass of P2O5 = 0.560 g

number of atoms=?

first of all we will calculate the molar mass of P2O5:

P = 2*31 g/mol = 62 g/mol

O = 5 * 16 = 80 g/mol

molar mass of P2O5 = 142 g/mol

Noe we will find the moles of 0.560 g P2O5:

moles = mass / molar mass

moles = 0.560 g / 142 g/mol

moles = 0.0039 mol

now we will find the atoms present in 0.0039 moles:

0.0039 * 6.02 * 10∧ 23 molecules

2.357 * 10∧ 21 molecules

P2O5 consist of 7 atoms:

2.357 * 10∧ 21 * 7 = 16.499 * 10∧ 21 atoms