Please help I am kinda confused

1.27 × 10²³ molecules SO₂

Explanation:

Step 1: Define

Avagadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Molar Mass of S - 32.07 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of SO₂ = Molar Mass of S + 2 Molar Mass of O

Molar Mass of SO₂ - 64.07 g/mol

Step 2: Use Dimensional Analysis

1.26846 × 10²³ molecules SO₂

Step 3: Simplify

We are given 3 sig figs.

1.26846 × 10²³ molecules SO₂ ≈ 1.27 × 10²³ molecules SO₂

yes

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