Asolution of ammonia and water contains 4.20×1025 water molecules and 6.20×1024 ammonia molecules. how many total hydrogen atoms are in this solution? enter your answer numerically.

The molecular formula of water and ammonia is and respectively.

From the atomic symbol of water it is clear that 1 mole of water contains 2 moles of hydrogen.

So, molecules of water contains atoms of hydrogen.

From the atomic symbol of ammonia it is clear that 1 mole of ammonia contains 3 moles of hydrogen.

So, molecules of ammonia contains atoms of hydrogen.

Total number of hydrogen atoms present in the solution = number of hydrogen atoms in water + number of hydrogen atoms in ammonia.

Substituting the values,

Total number of hydrogen atoms present in the solution =

Total number of hydrogen atoms present in the solution = .

Hence, the total number of hydrogen atoms present in the solution is atoms.

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