Aerosol OT (AOT) is used in veterinary medicine as a laxative.
If 250 g of AOT is dissolved in 1 000 mL of glycerin (density of glycerin is 1.25 g/mL), the concentration of AOT in the solution is:
A . 12.5% w/w.
B . 16.7% w/w.
C . 20.0% w/w.
D . 23.8% w/w.
E . 25.0% w/w.
Answer: B