`I have some aliens in my basement who have developed a chemical weapon in an attempt to escape. I was able to survive the first attack and capture a...

`I have some aliens in my basement who have developed a chemical weapon in an attempt to escape. I was able to survive the first attack and capture a sample of the dangerous gas. I analyzed it to find that it had a molar mass of 648.52 grams, and its empirical formula is C5H11N2O2P. What is its molecular formula?

• A. C20H44N8O8P4
• B. C5H11N2O2P
• C. C10H22N4O4P2
• D. CH2.2N0.4O0.4P0.2
• E. cannot be determined from the information given