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10 June, 04:55

How many molecules are in 1.52 mol of dinitrogen monoxide

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  1. 10 June, 05:49
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    9.15 * 10²³ molecules of N₂O present.

    Explanation:

    Given dа ta:

    number of moles = 1.52 mol

    molar mass of N₂O = 44.013 g/mol

    number of molecules = ?

    Solution:

    First of all we will calculate the mass of 1.52 mol.

    mass = number of moles * molar mass

    mass = 1.52 * 44.013 g/mol

    mass = 66.9 g

    Now we will find the number of molecules by using Avogadro number,

    The number 6.022*10∧23 is called Avogadro number and it is the number of atoms or molecule in one gram atom of an element or one gram molecule of a compound.

    44.013 g of N₂O = one mole of N₂O = 6.02 * 10²³ molecules

    For 66.9 g:

    66.9 g / 44.013 g * 6.02 * 10²³ molecules

    9.15 * 10²³ molecules of N₂O present
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