Iodine-131 is used I'd diagnosing certain medical problems because of the short half-life, which is 8.02 days. Assume the hospital lab uses for 4.52g of iodine-131 in a month. What mass of this radioisotope remains in patients after 32 days?

Question

Iodine-131 is used I'd diagnosing certain medical  problems because of the short half-life, which is 8.02 days. Assume the hospital lab uses for 4.52g of iodine-131 in a month. What mass of this radioisotope remains in patients after 32 days?

bobpursley · Answer

Amount/dosage=e^(-.693*32/8.02) put this into your google search window: e^(-.693*32/8.02)= multiply that by the original dose, 4.52 grams, and you have it.