阿摩線上測驗
2.The main procedures for determining the H2SO4 content in concentrated sulfuric acid include:
①Measuring a certain volume of concentrated sulfuric acid and diluting it;
②Transferring the solution to a volumetric flask and diluting to a fixed volume;
③Pipetting 20.00 mL of the solution to be tested and titrating it with 0.10 м NaOH solution.
Which of the following pieces of apparatus is NOT required for the above procedures?
(A) 
(B) 
(C) 
(D)
(E)
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統計： A(4), B(0), C(0), D(0), E(1) #3847778
統計： A(4), B(0), C(0), D(0), E(1) #3847778
