How much mass does 1 mol of O2 gas have? O A. 16.00 x 2g O B. 16.00 x (6.02 x 10^23) g C. 2 x (6.02 x 10^23) g D. 16

Question

How much mass does 1 mol of O2 gas have?
O A. 16.00 x 2g
O B. 16.00 x (6.02 x 10^23) g
C. 2 x (6.02 x 10^23) g
D. 16.00 g

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Sapo 6 months 2021-07-25T14:04:47+00:00 1 Answers 10 views 0

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    2021-07-25T14:06:02+00:00
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    Answer:

    Option A.

    Explanation:

    1 mol of anything contains 6.02×10²³ particles.

    We know that 1 mol of oxygen gas contains 2 moles of O.

    1 mol of oxygen weighs 16 g/mol, the mass for 1 molecule of O.

    By the way, the mass for 1 mol of O₂ may be:

    Option A  →  16 g/mol . 2 mol

    32 g

    Oyxgen is a dyatomic molecule, that’s why we have 2 moles of O.

    Another example can be:

    1 mol of water (H₂O) contains 2 moles of H and 1 mol of O.

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )