Question
Physical Pharmacy Question on Buffer Solutions
The proportion of NaCl liquid to give 1.5% solution of drug isotonic with blood plasma is:- (The freezing point of 1% w/v solution of drug is -0.122 and NaCl is -0.576 °C)
A
0.79%
B
0.59%
C
0.90%
D
0.50%
Answer
0.59%
Explanation
Solution
The correct answer is option (B) : 0.59%