04/24/24

At the beginning of an experiment, a scientist has 260 grams of radioactive goo. After 240 minutes, her sample has decayed to 4.0625 grams. What is the half-life of the goo in minutes?

I got t=44.1837 however I plug into equation and its wrong?What am I doing wrong?
Follows • 1
Expert Answers •2

04/19/24

Determine the empirical formula of a compound containing 47.37 grams of carbon, 10.59 grams of hydrogen, and 42.04 grams of oxygen
Determine the empirical formula of a compound containing 47.37 grams of carbon, 10.59 grams of hydrogen, and 42.04 grams of oxygen.In an experiment, the molar mass of the compound was determined to... more
Follows • 1
Expert Answers •1

04/11/24

Physics Change in Temp

Use the formula to find how many cal it takes to raise the temperature of 200 g of water from 20∘C∘C to 25 ∘C∘C. For the specific heat capacity c, use 1 cal/g⋅∘Ccal/g⋅∘C. Q=cmΔT
Follows • 1
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.