6.
P1-P-P4-P41-P4-P4-P64-P8-P+P5-P+P61+P5-P5+P51+P8-P6+P64-P7+P78-P4+P5-P51
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¥ ŢƞNJȎȎ -5g
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质量 (g) = 浓度 (mol/L) × 体积 (L) × (g/mol)