Final answer:
There are 6 hydrogen atoms and 4 oxygen atoms in one formula unit of Ca(C₂H₃O₂)₂, which is calcium acetate.
Step-by-step explanation:
The number of hydrogen and oxygen atoms in one formula unit of Ca(C₂H₃O₂)₂ can be determined by examining the subscripts in the formula. Each acetate ion (C₂H₃O₂)⁻ has 2 carbon atoms, 3 hydrogen atoms, and 2 oxygen atoms.
Since there are two acetate ions in the formula unit, we multiply these numbers by 2. Therefore, there are 4 carbon atoms, 6 hydrogen atoms, and 4 oxygen atoms in one formula unit of calcium acetate. To illustrate, the formula can be broken down as follows:
For the hydrogen atoms, 2 acetate ions each with 3 hydrogen atoms gives 2 × 3 = 6 hydrogen atoms. For the oxygen atoms, 2 acetate ions each with 2 oxygen atoms gives 2 × 2 = 4 oxygen atoms. Therefore, there are a total of 6 hydrogen atoms and 4 oxygen atoms in one formula unit of Ca(C₂H₃O₂)₂.