which has maximum number of molecules among 7 gram of nitrogen, 16 gram of NO2 16 gram of oxygen and 2 gram of hydrogen​

Question

which has maximum number of molecules among 7 gram of nitrogen, 16 gram of NO2 16 gram of oxygen and 2 gram of hydrogen​

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Thành Công 4 years 2021-07-21T20:14:13+00:00 1 Answers 11 views 0

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  1. phucdien
    0
    2021-07-21T20:15:19+00:00
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    Answer:

    2 g of H₂

    Explanation:

    We have:

    7 g of N₂

    16 g of NO₂

    16 g of O₂

    2 g of H₂

    Let’s count to verify the moles:

    7 g . 1 mol / 28g = 0.25 moles of nitrogen

    16 g . 1 mol / 46g = 0.348 moles of nitrogen dioxide

    16 g . 1mol /32g = 0.5 moles

    2 g . 1 mol / 2g = 1 mol

    The biggest number of moles is in the hydrogen.

    1 mol of anything contains NA particles

    1 mol of oxygen contains 6.02×10²³ molecules, the maximun number

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