Question

How do you make three percent of Sodium chloride?

Answer 1

Preparation of 3% sodium chloride using 30% sodium
chloride
Hypertonic 3% sodium chloride is no longer available & so 30% sodium
chloride vials must be used to produce a 3% solution.
Volume of 30%
sodium chloride (ml)
Volume of 0.9%
sodium chloride (ml)
Final volume of 3%
NaCl (ml)
7.2 92.8 100
14.4 185.6 200
18 232 250
21.6 278.2 300
28.8 371.2 400
36 464 500
e.g. to produce 250ml of 3% sodium chloride remove 18mls from a 250ml
bag of 0.9% sodium chloride & discard. Then add 18mls of 30% sodium
chloride to the remaining 232mls in the bag.
Final concentration = 2.995%