What is the molecular formula of each of the following compounds? (b) empirical formula C₂H₄O, molar mass = 88.0 g/mol

Video transcript

So here we have the empirical formula of a compound which is PC. L five And has a multi master for just 16.48 g per mole. You ask, calculate the molecular formula. And we know that the empirical formula gives us the relative number of atoms in the molecular formula gives us the actual number of atoms. So we need to first find what number to multiply the subscript by to get the whole number ratios for the molecular formula. We can do this by using a formula X equals the smaller mass by by the empirical mask and for the empirical mass PCL five Left 30.974 plus five times 35 1453. And this will give us 208 0.24 grams. We're gonna have eggs, It goes 416.48. Bye bye. 208 124. And this will give us two. And so now we need to apply the subscript in the empirical formula by two PCL five And this becomes P two cl 10. I'm molecular formula is P two cl 10. Thanks for watching my video and I hope it was helpful