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0.323 minutes Nuclear decay occurs according to first-order kinetics. What is the half-life of polonium-218 if...
QUESTION ANSWER 13.5 years Nuclear decay occurs according to first-order kinetics. What is the half-life of europium-152 if a sample decays from 10,0 g to 0.768 g in 50.0 years? 7.41 years 5.13 years 17.0 years I DON'T KNOW YET
QUESTION ANSWER 12.2 minutes Nuclear decay occurs according to first-order kineties. What is the half-life for mercury-206, which has a rate constant of 8.50 10 minutes? 5.89 minutes 11.8 minutes 8.15 minutes I DON'T KNOW YET
The decay of antimony-131 is first order with a half life is 23.03 minutes. How long (in minutes) would it take for a 1.4100 g sample to be reduced to 0.0893 g?
The decay of antimony-131 is first order with a half life is 23.03 minutes. How much of 1.4228 g sample would remain after 1.368 hours?
The decay of radioactive cadmium follows first-order kinetics. A sample of radioactive cadmium has a half life of 15 days. If you have a sample that originally weighed 40 g and later weighs 2.5 g, how much time elapsed between the initial and final masses? A. 45 days B. 600 days C. 60 days D. 100 days
Question 1: Answer the following questions regarding half-lives. Assume first-order half life kinetics (2 pts total). A. The half-life of Co-60 is about 5.25 years. Starting with a 42 g sample, how much remains after 21.0 years have passed (1 pt)? B. The Spider that bit Miles Morales secretes an unknown radioactive chemical that decays via first order kinetics. Originally 27.0 mg, only 5.3 mg remains after 32 days. What is this compound's half-life (1 pt)?
1. For a first order decay of [A], if 525 mg remains of an initial sample of 1.3079 g after 361 min, what is the half life (in minutes)? 2. The decay of antimony-131 is first order with a half life is 23.03 minutes. How much of 1.4228 g sample would remain after 1.368 hours? 3. The decay of antimony-131 is first order with a half life is 23.03 minutes. How long (in minutes) would it take for a 0.8893...
All radioactive decay processes follow first-order kinetics. The half-life of a gamma producing radioactive isotope is 2.4 hours. This isotope is used in a medical scan and enough of the isotope is given such that a heart scan can be done? If 0.75 ng of the isotope is administered, how ng of the isotope remains in the patient after 3.5 days?
a)For a first order decay of [A], if 188 mg remains of an initial sample of 1.3737 g after 516 min, what is the half life (in minutes)? b)The decay of carbon-14 is first order with a half life is 5576 years. How much of 1.4376 g sample would remain after 9190 years? c)The decay of cesium-135 is first order with a half life is 3.0 million years. How long (in years) would it take for a 0.9798 g sample...
The decay of radioactive cadmium follows first-order kinetics. A sample of radioactive cadmium has a half life of 15 days. If you have a sample that originally weighed 40 g and later weighs 2.5 g, how much time elapsed between the initial and final masses? Given the following reaction: 2A (g) ↔ B (g) + C (g) ∆H˚ = +27 kJ K = 3.2 x 10-4 Which of the following would be true if the temperature were increased from 25˚C...