Powdered sports drinks

It is straightforward to prepare sports drinks in powder form for dissolving at point of use. Isotonicity will depend on the accuracy with which the instructions... 

GHB is usually sold by the capful, or swig, for 5 to 25. It is generally found in liquid form, but may be found in a highly soluble powder form. Either way, it is typically added to a liquid such as water, sports drinks like Gatorade, or soft drinks. Mixing the drug with a sweetened drink can mask GHB s salty taste. GHB is also mixed into an alcoholic drink, which enhances its effects but increases the potential for adverse reaction, particularly respiratory distress. The use of alcohol is typical if date rape is intended, as the victim is usually unaware that GHB has been added to the drink. 

GHB is produced in either a liquid form or as a white powdered material. It is taken orally, typically combined with a liquid mixer such as a soft drink, water, or sports drink. It is sometimes mixed with alcohol. It may be sold in small vials at club parties. 

To make 2.000 gal of a powdered sports drink, a group of students measure out 2.000 gal of water with 500.-mL, 50.-mL, and 5-mL graduated cylinders. Show how they could get closest to 2.000 gal of water, using these cylinders the fewest times. 

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