66.48
H02-H-H19-H5
P261-P264-P270-P271-P280-P02+P52-P04+P40-P05+P51+P8-P0-P62+P64-P40+P2-P405-P501
质量 (g) = 浓度 (mol/L) × 体积 (L) × (g/mol)