Question

How many atoms are in 2.50 moles of SO₂?

a.5.02 × 10²³ atoms
b.4.52 × 10²⁴ atoms
c.1.52 × 10²⁴ atoms
d.7.53 × 10²³ atoms
e.3.01 × 10²⁴ atoms

Answer 1

To find the number of atoms in 2.50 moles of SO₂, multiply the number of moles by Avogadro's number. The answer is 1.51 × 10²⁴ atoms.

Step-by-step explanation:

To find the number of atoms in 2.50 moles of SO₂, we can use Avogadro's number, which tells us that there are 6.022 × 10²³ particles (atoms, molecules, ions) in one mole of a substance. In this case, we are interested in the number of atoms. We can set up a proportion:

2.50 moles SO₂ = X atoms SO₂ / 1 mole SO₂

To solve for X, we can multiply both sides of the equation by Avogadro's number:

X atoms SO₂ = 2.50 moles SO₂ * 6.022 × 10²³ atoms SO₂ / 1 mole SO₂

X atoms SO₂ = 1.51 × 10²⁴ atoms SO₂

So, there are 1.51 × 10²⁴ atoms in 2.50 moles of SO₂.