9.
H5-H5-H9-H5
P-P-P4-P4-P4-P4-P6-P64-P7-P8-P+P5-P4+P4-P6+P64-P7+P78-P45-P5
GHS,GHS7
7
质量 (g) = 浓度 (mol/L) × 体积 (L) × (g/mol)