2. Using zero as your reference point, how much liquid has left the buret? Use the correct number of significant figures.
(A) 20 mL
(B) 22 mL
(C) 22.0 mL
(D) 38 mL
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統計: A(0), B(3), C(4), D(1), E(0) #3577891
統計: A(0), B(3), C(4), D(1), E(0) #3577891
詳解 (共 2 筆)
#7279211
在看滴定管刻度時,若液面是下凹的看最低點,上凸的則看最高點
且本題的刻度最小單位為毫升,故需往後加一位估計值
因此本題答案為22.0
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