A carbon compound containing only carbon and oxygen has an approximate molecular weight of 290. On analysis it is found to contain 50% by weight of each element. What is the molecular formula of the compound ?

A carbon compound containing only carbon and oxygen has an approximate

1.	A carbon compound containing only carbon and oxygen has an approximate molecular weight of 290. On analysis it is found to contain 50% by weight of each element. What is the molecular formula of the compound ?
Answer» <html><body><p><br/></p>Solution :Calculation of empirical formula : <br/> <img src="https://doubtnut-static.s.llnwi.net/static/physics_images/NTN_HCS_ISC_CHE_XI_P1_C01_E09_020_S01.png" width="80%"/> <br/> `therefore` the empirical formula `=C_(4)O_(3)` <br/> Calculations of <a href="https://interviewquestions.tuteehub.com/tag/molecular-562994" style="font-weight:bold;" target="_blank" title="Click to know more about MOLECULAR">MOLECULAR</a> formula: <br/> Molecular <a href="https://interviewquestions.tuteehub.com/tag/mass-1088425" style="font-weight:bold;" target="_blank" title="Click to know more about MASS">MASS</a> = 290 (given) <br/> Empirical formula mass `=(4 xx 12.01 + (3 xx 16.0) = 96.04` <br/> `therefore <a href="https://interviewquestions.tuteehub.com/tag/n-568463" style="font-weight:bold;" target="_blank" title="Click to know more about N">N</a>=("Molecular mass")/("Empirical formula mass") = 290/(96.04) = 3.019 =3` <br/> `therefore` The molecular formula of the given compound <br/> `= 3 xx C_(4)O_(3) = C_(12)O_(<a href="https://interviewquestions.tuteehub.com/tag/9-340408" style="font-weight:bold;" target="_blank" title="Click to know more about 9">9</a>)`</body></html>