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?
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.
To determine the total number of hydrogen atoms in the solution, you need to calculate the number of hydrogen atoms contributed by both water and ammonia molecules.
First, let's calculate the number of hydrogen atoms in water:
The formula for water is H2O, meaning there are two hydrogen (H) atoms in each water molecule.
Given that there are 3.70×10^25 water molecules, we can multiply this value by 2 to find the total number of hydrogen atoms in water:
3.70×10^25 water molecules × 2 hydrogen atoms/molecule = 7.40×10^25 hydrogen atoms contributed by water.
Next, let's calculate the number of hydrogen atoms in ammonia:
The formula for ammonia is NH3, indicating that there is one hydrogen (H) atom in each ammonia molecule.
Given that there are 7.10×10^24 ammonia molecules, we can multiply this value by 1 to find the total number of hydrogen atoms in ammonia:
7.10×10^24 ammonia molecules × 1 hydrogen atom/molecule = 7.10×10^24 hydrogen atoms contributed by ammonia.
Finally, to determine the total number of hydrogen atoms in the solution, add the number of hydrogen atoms contributed by water and ammonia:
7.40×10^25 hydrogen atoms from water + 7.10×10^24 hydrogen atoms from ammonia = 8.11×10^25 total hydrogen atoms in the solution.
Therefore, the solution contains a total of 8.11×10^25 hydrogen atoms.