What is the molecular formula of each of the following compounds? (b) empirical formula NH₂Cl, molar mass = 51.5 g/mol

Video transcript

Hey everyone. So you were asked to identify the molecular formula Of the compound with an empirical formula of CH 20. In a molar mass of 90.09 g per mole. And we know the empirical formula gives us the relative number of atoms. And the molecular formula gives us the actual number of atoms. And now we need to first find what number to multiply the sub skirts by to get the whole number ratios for the molecular formula. We can do this by using the equation X. It was a miller mass about about the empirical mass. Our empirical mask of CH two oh It's 12.011 plus two. That was 1. plus 15 .999. And this gives us 30 .03g. We're gonna have eggs. It was 90 0.9 By by 30.03. Which would give us three. And now we need the most part of subscript. And the empirical formula by three. We have CH two oh And give us seed three 8603. Our molecular formula the C. Three H six 03. Thanks for watching my video and I hope it was up for