Question

How many atoms of iron are there in 2.01 moles of wolframite FeWO4

Answer 1

There are 1.21 × 1024 atoms of iron in 2.01 moles of wolframite (FeWO4), calculated by multiplying the number of moles by Avogadro's number.

Step-by-step explanation:

To calculate the number of atoms of iron in 2.01 moles of wolframite (FeWO4), we must use Avogadro's number, which is 6.022 × 1023 atoms per mole. Since there is one atom of iron in each formula unit of FeWO4, the number of iron atoms in 2.01 moles of wolframite will be equal to 2.01 moles multiplied by Avogadro's number.

The calculation is as follows:

• Number of iron atoms = 2.01 moles of FeWO4 × 6.022 × 1023 atoms/mole
• Number of iron atoms = 1.21 × 1024 iron atoms

Therefore, there are 1.21 × 1024 iron atoms in 2.01 moles of wolframite.

Answer 2

If there are two moles of wolframite, which includes one mole in the formula, multiply the amount of moles in the formula by the amount of moles you have.

1 mol of iron in wolframite x 2 moles of wolframite = 2 moles of iron

There are 6.022 x 10^23 atoms in a mole of any element.

2 x 6.022^23 = 1.2044^24 iron atoms