Final answer:
The total number of hydrogen atoms in the formula 3Mg(C₂H₂O₂)₂ is 18.
Step-by-step explanation:
The total number of hydrogen atoms in the formula 3Mg(C₂H₂O₂)₂ can be calculated by multiplying the number of hydrogen atoms in one molecule of C₂H₂O₂ by the total number of C₂H₂O₂ molecules in the formula and then multiplying by three, as there are three Mg atoms. The formula C₂H₂O₂ contains two hydrogen atoms. So, the total number of hydrogen atoms in the formula is (2 hydrogen atoms/molecule) x (3 molecules) x (3 Mg) = 18 hydrogen atoms.
Learn more about Hydrogen atoms in a chemical formula