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AP EAMCET202017 Sep 2020Morning ShiftChemistryStates of MatterActual

One mole of oxygen gas at STP is equal to

Options

  1. A(6.022 10²³ ) molecules of oxygen
  2. B(6.022 10²³ ) atoms of oxygen
  3. C(16 ~g ) of oxygen
  4. D(3.2 ~g ) of oxygen

Correct answer

A. (6.022 10²³ ) molecules of oxygen

Step-by-step solution

I mole of ( O ₂(g) ) at STP contains Avogadro number ( (N_A=6.022 10²³ ~mol ⁻¹ ) ) of ( O ₂ ) molecules, which will occupy its molar volume, i.e, 22.4 L.

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