A compound with the formula X2O5 contains 34.8% oxygen by mass. Identify element X. | Stoichiometry

🧪 TheChemSolverUSNCO / General Chemistry

StoichiometryMCQ

Question

A compound with the formula X₂O₅ contains 34.8% oxygen by mass. Identify element X.

arsenic

✓ Correct

carbon

phosphorous

samarium

💬

Still have doubts about this question?

Practice more questions like this, completely free.

Practice USNCO / General Chemistry questions like this — free

4,000+ questions across AP Chemistry, USNCO, and IChO — all free, no signup required.