Labels:text | screenshot | font | number OCR: How many grams of water in 3.20 moles of H2O? 57.6 gms 1 H 1.008 8 The periodic table shows that one mole 0 of H2 0 has a mass of about 18.0gms. 15.999 Grams H2 0 = (3.20moles ) ( 18.0gms/mo1 ) 18.0gms Grams H, 0 = 57.6 gms