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Calculate the Number of Oxygen Atoms in 45

Question 65

Multiple Choice

Calculate the number of oxygen atoms in 45.0 g of Co₂(SO₄) ₃ (molar mass of Co ₂ (SO ₄ ) ₃= 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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