Respuesta :

986929

Step 1: Find the Molar Mass of Adrenaline

Step 2: Find the Mass of Oxygen in 1 mol of Adrenaline

Step 3: Calculate Percentage Composition of Oxygen by Mass

Step 4: Calculate Mass of Oxygen in Sample

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Answer:

H = 1.98

S = 1.02

O = 4.08

Explanation:

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