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7 September, 17:51

A solution of ammonia and water contains 1.80*1025 water molecules and 7.00*1024 ammonia molecules. How many total hydrogen atoms are in this solution?

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  1. 7 September, 18:07
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    1 water molecule contains 2H atoms H atoms in 4.20*10^25 water molecules = 8.4*10^25 H atoms 1 NH3 molecule contains 3 H atoms H atoms in 6.00*10^24 NH3 atoms = 3*6.00*10^24 = 1.8*10^16 H atoms.

    Total H atoms = 8.4*10^25 + 1.8*10^25 = 1.02*10^16 H atoms
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