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分析化学酸碱滴定法测量

酸碱滴定法测量

2025-03-16 18:13:43

推荐回答（1个）

回答1：

解：
H2SO4 NaOH标液 SO42- NaOH标液
————→ ———————→
H3PO4 甲基橙 H2PO4- 百里酚酞 HPO42-
V1(mL) V2(mL)
c(NaOH)V2
c(H3PO4) = ——————
V试液
c(NaOH)(V1- V2)
c(H2SO4) = ——————————
2V试液

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