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 You need to prepare 100 mL of a 25% solution using a 40% and a 20% solution. How many milliliters of each solution will you need?

 A patient is to use 35 units of insulin twice daily. The insulin has a concentration of 100 units/mL and is available in 10 mL vials. How many vials will the patient need for a 30-day supply?

 The label of a 2 g vial states that adding 7.4 mL of diluent to the vial will result in a concentration of 200 mg/mL. What concentration (mg/mL) will you achieve if you only add 5.4 mL of diluent to the vial?

a battery in a circuit is an example of ____________________. 

Unit for charge

 A patient is to use 48 units of insulin three times daily. The insulin has a concentration of 100 units/mL. How many milliliters will the patient use in one day?

Parallel configuration of capacitors is easier to deal with than series configurations. (from an arithmetic point of view)

A pair of point charges with equal but opposite charge. 

Unit used for magnetic field

amount of charge per square meter