A solution of ammonia and water contains 3.50×1025 water molecules and 9.00×1024 ammonia molecules. How many total hydrogen atoms are in this solution?

Question

A solution of ammonia and water contains 3.50×1025 water molecules and 9.00×1024 ammonia molecules. How many total hydrogen atoms are in this solution? 
Any help would be appreciated, thank you!

bobpursley · Answer

Hydrogen atoms=2*watermolecules+ 3*ammoniamolecules Water: H2O ammonia NH3