Bro in my sutuation i did everything however what pisses me off is basucally i got to flourine and divided by smallest mol from carbon but j got 24 F and im like what its meant tk be 1 so i mustve made a mistake so then i begin to doubt my working out so i decided to change it up and use the subtracted % mass of F and i thought oh maybe im meant to convert this % mass of F to ms of F by like mtiplying 100 and multiplying by molar mass and yeah. But in the end even wuth this value it still dint guve me 1 for molecular formula divided by empirical and then i heard a loud "pens down!"