A solution of ammonia and water contains 3.70×1025 water molecules and 7.10×1024 ammonia molecules. How many total hydrogen atoms are in this solution?

Answer 1

H atoms in H2O = 3.70E25 x (2 H atoms/1 H2O molecule) = ?
H atoms in NH3 = 7.10E24 x (3 H atoms/1 NH3 molecule) = ?
Total = sum.