The half-life of silicon-32 is 710 years. If 10 grams is present now, how much will...
A radioactive element decays with a half-life of 100 years. If there are 10 grams of this element today, how many grams will remain 50 years from now? - O A 10 V OBS 15 Ос. 2 D. 10/2 O E. 10 Reset Selection
Part A how many grams will remain after Phosphorus 32 has a half-life of 14.0 days. Starting with 8.00 g of 840 days? Express your answer numerically in grams. View Available Hints) VALO Submit
The half-life of carbon-14 is 5730 years. How long does it take for 3.6 grams of carbon-14 to be reduced to 1.3 grams of carbon-14 by radioactive decay? years (Do not round until the final answer. Then round to the nearest hundredth as needed.)
Phosphorus-32 has a half-life of 14.3 days. How many grams remain from a 10 gram sample after 13 days? Click here for a copy of Final Exam cover sheet.
The half-life of an isotope of phosphorus is 14 days. How much of 40 grams of phosphorus would be left after 42 days? 5g LO 20 g 10 g 2.5 g
If you have 40 grams of a radioisotope with a half life of 10 hours, and you keep it in your lab for 30 hours, how much of the isotope will be left?
The half-life of cesium-137 is 30 years. Suppose we have a 18-gram sample. (a) Find the yearly growth factor a. (Round your answer to five decimal places.) a = (b) Find an exponential model m(t) = Cat for the mass remaining after t years. m(t) = (c) How much of the sample will remain after 85 years? (Round your answer to two decimal places.) g (d) After how long will only 3 g of the sample remain? (Round your answer...
The half-life of nitrogen-13 is approximately 9.97 minutes. How much of a 3 gram sample of nitrogen-13 would remain after 8 minutes? Round to three decimal places
Typing The Answer Is Mandatory The half-life of carbon is 5700 years. A substance was found that originally contained 40 grams of carbon-14. It now contains 10 grams of carbon-14. Predict how old the substance is. Explain how you arrived at this prediction.
1) A sample of Fe-59 has a mass of 200 grams. If the half-life of Fe-59 is 45 days, how many days will it take until only 10 grams of the original sample remains? Give your answer to the nearest day. 2) Some years ago Ms. Lopez invested $5000 at 12% compounded monthly, and the account now contains $20000. How many years ago did she start the account? Give your answer to the nearest year.