Tuesday

April 21, 2015

April 21, 2015

Posted by **mary** on Friday, December 23, 2011 at 2:03pm.

- chemistry -
**DrBob222**, Friday, December 23, 2011 at 3:08pmk = 0693/t

_{1/2}

Solve for k and substitute into the equation below.

ln(No/N) = kt

Use 5mg for No.

Use 1% x 5 = 0.05 for N.

k from above.

Solve for t.

t will be in days if you used 8.1 days for the half-life.

chemistry - Iodine-131 is used to destroy thyroid tissue in the treatment of an ...

chemistry - Iodine-131, a beta emitter, has a half-life of 8 days.How many grams...

chemistry - Iodine-131 has a half life of eight days. What mass of iodine-131 ...

Chemistry - 2. The half-life of a radioactive element is important when ...

Math - Please show me how to solve: Doctors can use radioactive iodine to treat ...

chemistry - Iodine-131 has a half-life of 8 days. How many grams of a 12 g ...

Exponential Growth and Decay - Doctors use iodine-131 to treat some forms of ...

chemistry - The disintegration of a radioisotope, such as I-131 to Xe-131, is ...

science - the half-life of iodine-131 is 8 days. how much iodine-131 will be ...

CALC -- integrals! - Iodine-131 is used to treat hypo-thyroidism since it is ...