A viral contains radioactive iodine -131 with an activity of 2.0 mCi per milliliter. If the thyroid test requires 3.0 mCi in an "atomic cocktail", how many milliliters are used to prepare the iodine -131 solution ?

Answer 1

2 mCi/mL x ?mL = 3 mCi
Solve for ?mL.

Answer 2

3mL