Final answer:
One formula unit of magnesium citrate, Mg₃(C₆H₅O₇)₂, is composed of 39 atoms in total. This comprises 3 atoms of Magnesium, 12 atoms of Carbon, 10 atoms of Hydrogen, and 14 atoms of Oxygen.
Step-by-step explanation:
The chemical formula for magnesium citrate is Mg₃(C₆H₅O₇)₂. In order to identify how many atoms make up one formula unit of magnesium citrate, we must look at the atomic composition and multiply by the subscript present in the formula. Thus, we have:
- 3 atoms of Magnesium (Mg)
- 12 atoms of Carbon (C), because there are 2 units of C₆
- 10 atoms of Hydrogen (H), because there are 2 units of H₅
- 14 atoms of Oxygen (O), because there are 2 units of O₇
Therefore, in total, one formula unit of magnesium citrate contains 39 atoms.
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