Calculate the Number of Oxygen Atoms in 45

question 69

Multiple Choice

Calculate the number of oxygen atoms in 45.0 g of Co₂(SO₄) ₃ (molar mass =405.8 g\mole) .

• A)8.01 × 10²³ atoms
• B)2.67 × 10²³ atoms
• C)12.0 atoms
• D)6.68 × 10²² atoms
• E)1.07 × 10²⁴ atoms

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