You have a sample 100.0 g sample of lodine-135. a) Determine the half-life of a radionuclide if after 37 days 1/32 of the sample is undecayed (radioactive). b) How many grams of the sample remain radioactive if 7/8 of the sample have decayed? c) How many grams of the sample does the 7/8 decay equal?

You have a sample 100.0 g sample of lodine-135. a) Determine the half-life of a radionuclide if after 37 days 1/32 of the sample is undecayed (radioactive). b) How many grams of the sample remain radioactive if 7/8 of the sample have decayed? c) How many grams of the sample does the 7/8 decay equal?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

20) Determine the missing particle in radioactive decay: 118 a) so 244 b) qu Pu > i He + 94
Please provide neat and clean handwriting and clear image
If 2.7 * 10−10% of the atoms of a radioactive isotope disintegrate in 1.0 yr, what is the decay constant of the process? Enter your answer in scientific notation.
95. For a given nuclear fission reaction of 235U 325 U+n Kr+3n 92 the amount of energy (in kJ/mol) released during this process is (given 235U = 235.0439 amu, ¹4²Ba = 141.9164 amu, ⁹¹Kr = 90.9234 amu, neutron = 1.00866 amu) (a) 3.12×10¹2 (b) 2.8×10¹¹ (c) 1.0×10⁹ (d) 1.68×10¹⁰. 142 Ba+ 56
All food consumed by humans contains a trace amount of naturally occurring, radioactive 14C. If this isotope decays by beta emission what new element is formed? a) 168O b) 147N c) 126C d) 115B
True or false? During one half-life, the mass of a radioisotope is reduced by half. Explain.
Identify the nuclide that has the shortest half-life. 220 Rn 86 235 UT 02 ○ C ○ 219 Th 00 232 Th 00
a) Mrs. Price's son, Liam is currently working as a boilermaker at the Darlington Nuclear Power plant. He is working with Uranium-237 which has a half-life of 13.75 days. What mass of an initial sample of 567.5g of uranium-237 would remain after 56 days? b) Write the complete reaction for the decay of Po-210 if it undergoes 2 consecutive alpha decay followed by a beta decay followed by another alpha decay.
An unknown radioactive substance is currently decaying. Initially, the sample contained 17.8g of the substance. After 5.00 hours of decay, 3.4g of the substance remain. What is the half-life (t1/2) of the substance?
A sample of charcoal from a ceremonial fire pit was determined to have a radiation count of 4.28 counts/sec from 14C radioactivity. If a living piece of wood displays 7.83 counts/second for the same type and size sample, how old is the piece of charcoal (assuming the wood was burned shortly after it died)? The half-life of 14C is 5730 years. O 4200 years 5000 years O 7200 years O 6700 years
This question is from a study guide for an upcoming exam. If you can please go through the stereochemistry of the question and help me understand the breakdown of the reaction id really appreciate it.
Calculate the percent activity of the radioactive isotope cobalt-60 remaining after three half-lives. activity: