The percentage composition of Mohr's salt is 14.32% Fe2+, 9.2% NH4 +, 49% SO4 2- & 27.57% H2O. What is the empirical formula of the compound? Share with your friends Share 15 Tanu Sharma answered this Empirical formula= Fe(NH4)2(H2O)6(SO4)2 31 View Full Answer