Question

Which molecular formula is correctly paired with its corresponding empirical formula?
Group of answer choices

A. C6H6 and C2H2

B. CO2 and CO

C. P4O10 and P2O5

D. C2H2 and CH2

Answer 1

Answer: C. P4O10 and P2O5

Explanation: The molecular formula represents the actual number of atoms of each element in a molecule, while the empirical formula represents the simplest whole-number ratio of atoms in a compound. Among the options provided, the molecular formula correctly paired with its corresponding empirical formula is:

C. P4O10 and P2O5

In this case:
- P4O10 is the molecular formula.
- P2O5 is the empirical formula, as it represents the simplest whole-number ratio of phosphorus (P) and oxygen (O) atoms in the compound.