A pharmacy’s recipe book provides a formula that yields 25 mL of a drug solution. You are to prepare 175 mL of the solution. The formula calls for 4 mL of Drug A, 3 mL of Drug B, and distilled water QSAD to 25 mL. How much of each ingredient will you need?

 The pharmacy’s recipe book provides a formula that yields 20 g of an ointment. You are asked to prepare a 140 g jar of the ointment. By what number do you need to multiply each ingredient to make the desired formula?

 You need to prepare 200 mL of a 10% solution using a 28% and an 8% solution. How many milliliters of each solution will you need?

in a circuit, a light bulb is an example of a _______________. 

A point in a circuit where three or more conductors meet

Measures resistance

The ratio of charge to potential difference

Opposing charges ______________. 

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

1.602 x 10-19 Joules