Answered: The first-order decay of radon has a…

The first-order decay of radon has a half-life of 3.823 days. How many grams of radon remain after 7.22 days if the sample initially weighs 250.0 grams? 76.3 g 54.8 g 4.21 g 183 g 67.5 g

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

Related questions

Q: The half-lives of different radioisotopes are given in the table. Radioisotope Half-life (min)…

A: Given Half life of Lead - 196 = 37 min Initial Amount (A)0 = 64 mg Remaining Amount…

Q: If you accidentally spill phosphorus-32 onto your shoe, how long would it take before 99.9% of the…

Q: The half-life of Phosphorus-32 is 14.3 days. If you start with 100 grams of it, how long will it…

A: Half life of a first order reaction is given by , t1/2=0.693k Write the expression for first order…

Q: What is the half-life of a radioactive substance if after 5 years 95 percent of an initial amount…

A: Half life of a given radioactive substance is that time duration in which it's amount reduced half…

Q: Calculate how long it will take for a sample of 234TH with a half-life of 24.1 days to decay to 6.0%…

A: We are given that half life is about 24.1 days, and sample decays to 6% of its original value . We…

Q: The first-order decay of radon has a half-life of 3.823 days. How many grams of radon remain after…

A: Ans

Q: U-238 decays with the half-life of 4.47 billion years. Calculate the % of a sample left after 13.4B…

A: Given : Half life = 4.47 billion years Time = 13.4 billion years.

Q: a radioactive isotope of hydrogen, has a half-life of 12.4 years. Of an initial sample of 33 grams,…

A: Reaction in which rate is linearly depend upon one reactant is known as first order reaction.

Q: The number of radioactive nuclides in a sample decays from 3.80 x to 1020 19 9.50 x 10 in 58.0…

Q: Radium-223 decays with a half-life of 11.4 days. How long will it take for a 0.240-molmol sample…

Q: a certain radioactive substance decays at a rate proportional to the amount present. If a quarter of…

A: quarter of a radioactive substance decayed after 35 hours

Q: PET studies require fluorine-18, which is produced in a cyclotron and decays with a half-life of…

A: The maximum distance that the cyclotron can be transported has to be given,

Q: If the amount of radioactive phosphous-32 in a sample decreases from 1.2 g to 0.30 g in 28.6 days,…

Q: ou start with 2.00 moles of radioactive element with a half-life of 146 days. How many days until…

A: All decay reactions follow first-order kinetics.The initial number of moles of the element = 2.00…

Q: lodine-131 is used in the treatment of tumors in the thyroid gland. Its half-life is 8.1 days.…

Q: The half life of Carbon-14 is 5730 years. Calculate what percentage of C-14 will remain after 17,190…

Q: a rock conatains 0.257mg of Pb-206 for every milligram of U-238. The half-life for the decay of…

Q: Calculate the heat needed to boil a 2.0 L of water from 25 °C. c = 4.2J/Kg K ; density of water = 1…

Q: The first-order decay of radon has a half-life of 3.823 days. How many grams of radon decomposes…

Q: lodine-131 is administered orally in the form of Nal(aq) as a treatment for thyroid cancer. The…

A: The half life of the iodine -131 = 8.04 daysThe time required for sample to reduce to 6.14 % of…

Q: the half life of iodine-131 is 8 days, after how many days will a sample of it decay to 70% of its…

A: As we know, Radioactive decay follows 1st order kinetics.Integrated rate law equation for 1st order…

Q: The first-order decay of radon has a half-life of 91.75 hours. How many grams of radon remain after…

Q: 6. A rock contains 0.257 mg of lead-206 for every milligram of uranium-238. The half-life for the…

A: Given, Half-life - 4.5 × 109 yr. 1 mg U-238 contains 0.257 mg of Pb-206.

Q: ives? A sample of Oxygen-19 has decayed down to 1/32 of its initial concentration a What is the…

A: We have to find half life

Q: The half-lives of different radioisotopes are given in the table. Radioisotope Half-life (min)…

Q: If 7.0 grams of a sample decays to 0.44 grams in 2.0 hours, what is the half-life time of the…

A: For calculation of half life first of all we need rate constant of the reaction, which can be…

Q: The compound shown below has the following IUPAC name:…

A: IUPAC is International Union of Pure and Applied Chemistry. In nomenclature of chemical compounds, a…

Q: The first-order decay of radon has a half-life of 3.823 days. How many grams of radon decomposes…

A: Given Half life ( t1/2 ) = 3.823 days Time ( t ) = 5.55 day Initial Amount ( A0 ) = 80…

Q: The half-life of Radium-226 is 8 years. How much of an initial 171 g sample will remain after 43…

Q: 4. How long will it take for a sample of iron-55 to decay to 1/64 of its original mass if iron- has…

A: Radioactive decays are always first order reaction. So we will use rate law equation of first order…

Q: One of the radioactive isotopes used in medical treatment or analysis is iodine-131. The half-life…

A: The relationship between the decay constant and the half-life period is given below.

Q: The half-life of nitrogen-16 is 7.0 seconds. How long does it take for 100 mg of nitrogen-16 to be…

Q: If 28.0% of a sample of gallium-66 decays in 4.46 hours, what is the half-life of this isotope (in…

Q: that reads 452 g. How much sample is left after half an hour? 5.00 g 90.4 g 14.1 g 75.3 g

Q: The half life of Fr is 19 minutes. How many minutes will it take for a given amount of this…

Q: Radon has been the focus of much attention recently because it is often found in homes. Radon-222…

Q: Isotope X has a half-life of 71.8 years. If a sample initially contains 676. mg of X, what mass of X…

Q: How long long does it take for 78 % of sample of cobalt-60 to decay (the half life is 5,26 years)?

A: The rate of a reaction is expressed as: Rate = k[A]n where k is the rate constant, [A] is the…

Q: 13' Cs has a half-life of 30.2 years. How many years will it take for a 100.0-g sample to decay to…

Q: lodine-131 is a radionuclide that is frequently used in nuclear medicine. Among other things, it is…

A: Sample mass of Iodine - 131 initially = 0.16 gram Half life of iodine-131 = 8 days We know that…

Q: 10. The half-life of tritium (hydrogen-3) is 12.3 years. If 48.0 milligrams of tritium is released…

A: 10. Given,Half-life of tritium Hydrogen-3 = 12.3 yearsTritium released from a nuclear power plant…

Q: The half-life of Radium-226 is 13 years. How much of an initial 179 g sample will remain after 36…

A: Radio active reactions are first order reactions. Decay constant (k) = 0.693 / t1/2 Where, t1/2 =…

Q: 137 Cs has a half-life of 30.2 years. How many years will it take for a 100.0-g sample to decay to…

Question

The first-order decay of radon has a half-life of 3.823 days. How many grams of radon remain after 7.22 days if the sample
initially weighs 250.0 grams?
76.3 g
O 54.8 g
4.21 g
183 g
O 67.5 g

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

A radioactive isotope has an activity of 9.94×104 Bq initially. After 3.35 hours the activity is 5.96×104 Bq. What is the half-life of the isotope, and what is it after 3.5 hours?
After 42 years, what mass remains of a 100.0 g sample of a radioactive isotope with a half-life of 8.00 years? Radioactivity is a first order process. O 2.6 g O 9.2 g O 7.9 g O 4.4 g
Radioactive radon-222, found in many homes, is a potential health hazard. The half-life of radon-222 is 3.82 days. How much time is required for the activity of a sample of radon- 222 to fall to 25.3 percent of its original value? days
If 25%(1/4)of a radioactive element remains after1,000years, what is the half-life?
The half-life of gold-194 is approximately 1.6 days. Step 2 of 3: How much of a 10 gram sample of gold-194 would remain after 4 days? Round to three decimal places.
How many hours are needed for a 16.0 g sample of Si-31 to decay to 2.0 g? The half-life for Si-31 is 2.6 h.
The half-life of nickel-63 is 100.1 years. If there are 100 grams of nickel-63 present at a certain time, how grams of nickel-63 will remain in 400.4 years? 50.0 12.5 6.25 25.0 It will all be gone
187Pb has a half-life of 15.2 s. If a sample of this isotope is initially 750.0 g, what mass of the isotope (in g) will remain after 18.5 s?
The half-lives of different radioisotopes are given in the table. Radioisotope Half-life (min) argon-44 12 lead-196 37 potassium-44 22 indium-117 43 How long would it take, in minutes, for the amount of lead-196 to decrease from 68.0 mg to 8.50 mg? time: min
The currently accepted value for the half-life of radiocarbon is 5,730 years. Based on that information, which of the following conclusions is correct. 1. In 2,865 years, the entire original amount of carbon-14 in the sample will be gone. 2. In 11,460 years, the entire sample will be another element. 3. In 5,730 years, half of the original sample of carbon will be gone. 4. In 5,730 years, half of the original amount of carbon-14 in the sample will be gone.
Ab 28.