22. enVision STEM A water molecule is made up of 3 atoms. One third of the atoms are oxygen, and the remaining atoms are hydrogen. If there are 114 water molecules, how many hydrogen atoms are there? Show your work.

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To solve the problem, we need to determine the number of hydrogen atoms in 114 water molecules.

1. **Identify the composition of a water molecule:**
   - A water molecule (H₂O) consists of 2 hydrogen atoms and 1 oxygen atom. Therefore, each water molecule is made up of a total of 3 atoms.

2. **Calculate the total number of atoms in 114 water molecules:**
   $$
   \text{Total atoms} = \text{Number of molecules} \times \text{Atoms per molecule} = 114 \times 3
   $$

3. **Calculate the total number of atoms:**
   $$
   \text{Total atoms} = 114 \times 3 = 342
   $$

4. **Determine the number of oxygen and hydrogen atoms:**
   - According to the problem, one third of the atoms are oxygen. Therefore, the number of oxygen atoms is:
   $$
   \text{Oxygen atoms} = \frac{1}{3} \times \text{Total atoms} = \frac{1}{3} \times 342
   $$

5. **Calculate the number of oxygen atoms:**
   $$
   \text{Oxygen atoms} = \frac{342}{3} = 114
   $$

6. **Calculate the number of hydrogen atoms:**
   - The remaining atoms are hydrogen. Since there are 342 total atoms and 114 are oxygen, the number of hydrogen atoms is:
   $$
   \text{Hydrogen atoms} = \text{Total atoms} - \text{Oxygen atoms} = 342 - 114
   $$

7. **Calculate the number of hydrogen atoms:**
   $$
   \text{Hydrogen atoms} = 342 - 114 = 228
   $$

Thus, the total number of hydrogen atoms in 114 water molecules is **228**.
There are 228 hydrogen atoms in 114 water molecules.

22. enVision STEM A water molecule is made up of 3 atoms. One third of the atoms are oxygen, and the remaining atoms are hydrogen. If there are 114 water molecules, how many hydrogen atoms are there? Show your work.

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