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[单选题]
已知某一片剂,规格为0.3g,测得10片重3.6790g,欲称取相当于该药物0.5g的量,应取片粉()克。
A.0.3
B.0.4205
C.0.5
D.0.6132
查看答案
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A.0.3
B.0.4205
C.0.5
D.0.6132
A.0.002g/l
B.0.002%
C.0.002mol/L
D.0.200%
7g,按药典规定进行测定,消耗乙二胺四乙酸二钠滴定液(0.0501mol/L)18.92ml.每1ml乙二胺四醋酸二钠滴定液(0.05mol/L)相当于15.40mg的CsHnoCaO6.5H2O.计算乳酸钙占标示量的百分含量。