Question

a solution of ammonia and water contains 2.30×1025 water molecules and 6.90×1024 ammonia molecules. how many total hydrogen atoms are in this solution?

Answer 1

To find the total number of hydrogen atoms in the solution, you add the number of hydrogen atoms from both the water and ammonia.

Step-by-step explanation:

To determine the total number of hydrogen atoms in the solution, we need to calculate the number of hydrogen atoms in both the water and ammonia molecules and then add them together. In a water molecule (H₂O), there are 2 hydrogen atoms. Therefore, in 2.30 × 10^25 water molecules, the total number of hydrogen atoms is 2 × 2.30 × 10^25 = 4.60 × 10^25.

In an ammonia molecule (NH₃), there is 1 hydrogen atom. Therefore, in 6.90 × 10^24 ammonia molecules, the total number of hydrogen atoms is 1 × 6.90 × 10^24 = 6.90 × 10^24.

To find the total number of hydrogen atoms in the solution, we add the number of hydrogen atoms from both the water and ammonia: 4.60 × 10^25 + 6.90 × 10^24 = 5.29 × 10^25.