a compound has an empirical formula of C3H5O2 and a molar mass of 145,14g. what is the molecular formula of this compound?

4 answers

empirical formula mass = 3C+5H+2O =
3*12+5*1+2*16 = 36+5+32= 73.

So 145.14/73 = 1.988. Round this to an even number (in this case 2.0) and the molecular formula is
(C3H5O2)2 or C6H10O4. That is, the molecular formula is two units of the empirical formula.
YES! THANK YOU THANK YOU THANK YOU!
Pls i need the answer
calculate the ph solution with hydrogen ion concentration of 6.28×10^6 moldm and 1×10^-5