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17 January, 17:35

How many molecules are in 1.00 g of C10H14N2? 3.71 x 1021 9.76 x 1025 1.02 x 10-26 2.32 x 1022

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  1. 17 January, 17:44
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    3.71 x 1021 (First option)

    Explanation:

    Let's determine the molar mass of the compound.

    C₁₀H₁₄N₂ = 12. 10 + 14.1 + 14.2 = 162 g/mol

    So 162 grams of compound are contained in 1 mol

    1 g of C₁₀H₁₄N₂ are contained in (1 / 162) = 0.00617 moles

    Let's conver the moles into amount of molecules (mol. NA)

    0.00617. 6.02*10²³ = 3.71*10²¹ molecules
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