Question

How many oxygen atoms in 1.00 g of (HCQ)?

Answer 1

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6.022×10^23

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Answer 2

Given:

Mass of HCQ = 1 gm

To Find:

No of oxygen atoms present in the given amount of HCQ.

Calculation:

- Molar mass of HCQ (Hydroxychloroquine) = 335.5 gm

- From the formula (C₁₈H₂₆ClN₃O), 1 mole of HCQ contains 1 mole of oxygen .

⇒ No of oxygen atoms present in 335.5 gm of HCQ = 1 mole = 6.022 × 10²³

⇒ No of oxygen atoms present in 1 gm of HCQ = (6.022 × 10²³) / 335.5

⇒ No of oxygen atoms present in 1 gm of HCQ = 1.795 × 10²¹ (approx.)

- So, approximately 1.795 × 10²¹ atoms are present in 1 gm of HCQ.