题目内容

The correct way to prepare NaOH standard solution is ( ).

A. indirect formulation method (calibration method)
B. use an analytical balance to weigh the reagent
C. dissolve a small amount of distilled water in a volumetric flask
D. use the above B and C

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A. Qualitative analysis of inorganic ions
B. Quantitative analysis of organic molecules
C. Gravimetric analysis
D. Biochemical analysis

A. random error
B. method error
C. terminal error
D. reagent error

A. High sensitivity
B. High selectivity
C. Not susceptible to interference
D. Flexible

A. direct titration
B. indirect titration method
C. precipitation titration
D. redox titration method