某混合碱用 HCl 标准溶液滴定,使用酚酞甲基橙作为指示剂,其对应的盐酸标准溶液消耗体积 V 1 =0 , V 2 >0 ,则混合碱组成为:
A.
NaOH , Na 2 CO 3
B.
NaHCO 3
C.
NaOH , NaHCO 3
D.
Na 2 CO 3 , NaHCO 3
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参考答案:
举一反三
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A.
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B.
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