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3 July, 17:01

How many moles of water are represented by 8.33*10^18 molecules of water

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Answers (1)
  1. 3 July, 19:42
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    number of moles of water (n) = 1.383 x10 ⁻⁵ mol

    Explanation:

    Data Given:

    No. of molecules of water = 8.33*10¹⁸

    No. of Mole of water = ?

    Formula Used to calculate

    no. of moles = numbers of particles (ions, molecules, atoms) / Avogadro's number

    Avogadro's no. = 6.023 x10²³

    So the formula could be written as

    no. of moles (n) = no. of molecules of water / 6.023 x10²³

    Put the values in above formula

    no. of moles (n) = 8.33*10¹⁸ / 6.023 x10²³

    no. of moles (n) = 8.33*10¹⁸ / 6.023 x10²³

    no. of moles (n) = 1.383 x10 ⁻⁵

    so 1.383 x10 ⁻⁵ moles of water are represented by 8.33*10¹⁸ molecules of water.
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