8) Calculate the molar mass of CsHoOp C) 166.13 g/mol B) 182.09 g/mol D) 150.18 g/mol A) 172.13 g/mol 9) Whatis the mass of 9.44 1024 molecules of NO2? The molar mass of NO2 is 46.01 g/mol. 10) Calculate the mass percent composition of lithium in Lig PO4 11) Determine the empirical formula for a compound that is 36.86% N and 63.14% O by mass. B) 294 8 C) 685 g D) 205 g E) 341 8 A)721g A)30.72 % B) 17.98% C)20.82% D)55.27% E)26.75 % A) N203 B) N20 C) NO2 D) NO3 E) NO