molecular mass of k2so4.al2(so4)3.24h2o with steps Share with your friends Share 0 Mayank Jha answered this K2SO4 = 2*39 + 1*32 + 4*16 = 78 + 32 + 56 = 166 u -7 View Full Answer Manas Jyoti Das answered this K2SO4 =(2*39)+32+(4*16) =78+32+56=166utherefore,molar mass of K2SO4 =166 u -7 Nitin Sao answered this molar mass of k2 SO4=166u -12 Amaan Hussain Barbhuyan answered this I think the molar mass of potash alum is 948g 2 Radha Shrivastava answered this k2 So4.al2 (so4)3.24 H2O -1