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24 November, 18:49

What mass of silicon dioxide contains 9.72 X10e24 molecules of silicon dioxide?

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  1. 24 November, 20:39
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    1033.36g

    Explanation:

    From Avogadro's hypothesis, we understood that 1 mole of any substance contains 6.02x10^23 molecules. This means that 1 mole of SO2 also contains 6.02x10^23 molecules.

    1 mole SO2 = 32 + (16x2) = 64g.

    Now, If 64g of SO2 contains 6.02x10^23 molecules,

    Therefore, Xg of SO2 will contain 9.72x10^24 i. e

    Xg of SO2 = (64x9.72x10^24) / 6.02x10^23

    Xg of SO3 = 1033.36g.

    Therefore, 1033.36g of SO2 contains 9.72x10^24 molecules
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