1.00 mole of Al(NO3)3 contains how many oxygen atoms? The molar mass of Al(NO3)3 is 213.0 g/mol.?

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  • 8 months ago

    1.00 mole of anything contains

    6.022 x 10^23 molecules.

    Each molecule of Al(NO3)3 contains 9 oxygen atoms.

    So 1.00 mole of Al(NO3)3 contains

    5.42 x 10^24 oxygen atoms.

  • martin
    Lv 7
    8 months ago

    One mole of Al(NO3)3 contains 9 oxygen atoms, because Al(NO3) contains 3, and it's multiplied by 3.

  • 8 months ago

    How many O atoms.....

    Simply set up the conversion factors used in the unit-factor method.

    1.00 mol Al(NO3)3 x (9 mol O / 1 mol Al(NO3)3) x (6.022x10^23 atoms O / 1 mol O) = 5.42x10^24 atoms O

    In the unit-factor method the units you don't want will cancel out, leaving the units you do want.

  • 8 months ago

    1.00 mole of Al(NO3)3 contains 9.0 mole of O atoms 

    number of atoms = 9* 6.02*10^23 = 5.42* 10^24 atoms of Oxygen

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