4. CaO+ H2SO4 CaSO4 + H2O (a) How many molecules of CaSO4 can be formed from 1.54 x 1015 molecules of H2SO4? Imole Casou\/98g H₂SO4\ mole H₂SO (1.54.1015 Ortoms 112504) (mole H2504) (male Hasa, LaS04 ) (989 6.02.1023 2507.107 (b) If 6.50 x 1026 molecules of water are formed during this reaction, how many moles of CaO were used? 14.SO) (1 mole H₂​