Answer to Question #17663 in Physical Chemistry for Kimberly

Question

Vial contains radioactive iodine-131 with an activity level of 2.0 mCi. Thyroid test requires 3.0 mCi. How many mL needed to prepare solution?

Answer 1

You would need 1.5 ml to get atotal of 3 mCi I131

Stock solution contains 2.0 mCi/ml * X ml = 3.0 mCi
X= 3.0/2.0

X= 1.5 ml