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PACKAGING OF PHARMACEUTICALS
Calculate the percentage of sodium chloride required to make 1% w/v solution of procaine hydrochloride iso -osmotic with blood plasma .
GRAPHIC METHOD BASED ON VAPOUR PRESSURE AND FREEZING POINT DEPRESSION .
Find the proportion of sodium chloride required to make a 1% solution of a cocaine hydrochloride iso - osmotic with blood plasma .
Find the proportion of dextrose needed to form a solution iso-osmotic with blood plasma .
FIND the concentration of sodium chloride required to make 50ml of isotonic solution containing 0.5% ephedrine hydrochloride and 0.5% chlorobutol .
METHOD (2) -CALCULATION based on the diluted solution i.e. calculate the amount of sodium chloride required for 200 ml of a 0.25 percent solution instead of 100 ml of 0.5 percent solution .