10.調製1% atropine sulfate溶液15 mL,須加多少mg的NaCl使成等張溶液?(1 g atropine sulfate的NaCl equivalent為0.13 g)
(A)39.2
(B)57.6
(C)115.5
(D)192.4
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統計: A(162), B(345), C(3237), D(353), E(0) #722637
統計: A(162), B(345), C(3237), D(353), E(0) #722637
詳解 (共 4 筆)
#1116109
atropine sulfate :1% * 15 * 0.13 = 0.0195
等張溶液 : 0.9% * 15 = 0.135
NaCl :0.135 - 0.0195 = 0.1155 g = 115.5 mg
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#3137993
1.先計算15ml的等張溶液中有多少g的NaCl
等張溶液=0.9% NaCl
0.9 g / 100 ml = 口 g / 15ml
口= 0.135 g
0.9% NaCl在15ml有0.135g
2.列式計算(設加入NaCl X 克)
0.135g = 0.15g x 0.13 + Xg x 1
X=0.1155 g=115.5 mg
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