Which of the following molecular formulas DOES NOT have the corresponding empirical formula \( X Y_{2} Z \) ?

To find out which molecular formula does not correspond to the empirical formula \( XY_{2}Z \), we can analyze the ratios of elements in various molecular formulas. For instance, a molecular formula like \( X_{2}Y_{4}Z_{2} \) simplifies to \( XY_{2}Z \), as the ratio of each element matches that of the empirical formula. However, a formula such as \( X_{3}Y_{5}Z \) does not simplify to \( XY_{2}Z \) because the proportions are different. The trick is to find a molecular formula where the ratio of \( X:Y:Z \) does not yield 1:2:1, thus failing to match the empirical formula’s structure! If you want to dive deeper into the fun world of chemistry and molecular formulas, there's plenty to explore! Understanding how to derive empirical formulas not only solidifies your grasp of chemistry concepts but also sets you up for success in stoichiometry and beyond. You can check out educational resources or join chemistry clubs to perform exciting experiments and discussions that will enhance your knowledge.