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Chemistry

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A solution of ammonia and water contains 2.90×1025 water molecules and 9.00×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
any help would be great.

  • Chemistry -

    There are 2*2.9-E25 H atoms in the H2O.
    There are 3*9.00E24 H atoms in the NH3.
    Total = the sume of the two.

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