a doctor prescribes 3,200 mg of ibuprofen (c13h18o2) per day for a person with osteoarthritis.

how many moles of ibuprofen does the patient take each day?

1.55x10⁻⁵ moles does the patien take each day

Explanation:

Let's find out the molar mass of ibuprofen, in first place.

C₁₃H₁₈O₂

C = 12 g . 13 = 156

H = 1 g . 18 = 18

O = 16 g. 2 = 32

156 + 18 + 32 = 206 g/mol

In 1 mol of ibuprofen, we have 206 grams of compound.

Mass of compound / Molar mass = Moles of compound

Now, let's convert mg to g

3.2 mg / 1000 = 3.2x10⁻³ g

3.2x10⁻³ g / 206 g/m = 1.55x10⁻⁵ moles

You can say 1.55x10⁻⁵ moles

1.55x10⁻⁵ moles . 1000 = 0.015 mmoles

1.55x10⁻⁵ moles . 1x10⁶ = 15.5 μmoles

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