What mass of radon (219Rn) has the same activity as 3.0 mg of Radon (222Rn)? (given that the half-life time of radon is 3.823days)

Q: D. The half-life of 210Pb is 21 years. How old is a painting in which the activity of 210Pb activity…

A: Calculation

Q: A radioactive sample contains 3.01×1018 atoms of a nuclide that decays at a rate of 3.28×1013…

A: The radioactive decay follows first-order reactions. Therefore, N = N0 e -λt

Q: The half-life of Ga-67 is 77 9 hours. How long will it take Ga-67 to decay and lose 95% of its…

A: Given  Half life of Ga- 67 = 77.9 hours  decay % = 95 %  Time ( t ) = ?

Q: The half-life of cesium-129 is 32.0 hours. How much time is required for the activity of a sample of…

A: Radioactive decay follows the first-order kinetics. The decay constant (λ) and half-life of a…

Q: 218 Po from 238 U, which proceeds by a series of 84 29. Write a nuclear reaction for each step in…

A: Write the nuclear reaction of the given stepwise emission of the particles--

Q: 1. The radioactive nuclide has a half-life of 17.5 hours. What a 0.0100 g sample after 24.0 hours…

A:

Q: The half-life of Oxygen-14 is 1.177 minutes.  You originally have 20 grams of it.  After roughly 3.5…

A: Given: Half-life of Oxygen-14 is 1.177 minutes Mass of Oxygen-14 is 20 g

Q: A wooden artifact is burned and found to contain 21 g of carbon. The 14C activity of the sample is…

A: Radio carbon dating is a technique used to determine the age of the wooden artefact or…

Q: Determine the age of a rock containing 0.065 g of uranium-238 (t1/2=4.5x10^9yr) and 0.023 g of…

A: 238U decays and form 206Pb. First calculate the amount of 238U that got decayed to form 206Pb.…

Q: 9.) Cesium-134 undergoes decay by B emission and has a half-life of 2.0 years. How much of a 3.50-g…

A: Given:                 Half life of Cesium-134 is 2.0 years                 Taken mass of Cesium-134…

Q: The radioactive nuclide has a half-life of 5.27 years. Calculate the mass of that remains from…

A: The amount of time that passes is a whole number multiple of the radioactive nuclide half-life.…

Q: A moon rock collected by a U.S. Apollo mission is estimated to be 3.70 billion years old by…

A: Since this is a first order decay The rate constant with half life is given by…

Q: How much of a 0.15 g sample of U-238 after the passage of 3200 years? Half-life is 4.01x10° vears.

A: To determine the amount of 0.15 g radioactive substance left after 3200 years if the half-life is…

Q: The half-life of Po-218 is 3.1 minutes. How many grams of Po-218 would be left after 9.3 minutes, if…

A: M

Q: How much of a 0.15 g sample of U-238 after the passage of 3200 years? Half life is 4.01×10⁹ years.

A: Given: Mass of sample = 0.15g Duration of decay= 3200 years. Half life= 4.01×109 years To find: The…

Q: Half-life of Element X mass How much of the daughter product exists after 2 half-lives? of 60…

A: Answer :-  Amount of daughter element after 2 Half lives = 25%…

Q: 2. How long will the 2.56 mg of Pu-236 decay to 0.200 mg?

A: Half-life: It is the time that is taken by an element or any substance to get decay up to half of…

Q: Radium-226 (atomic mass = 226.025402 amu) decays to radon-224 (a radioactive gas) with a half-life…

A: First, decay constant value is determined using given half life value.

Q: A rock containing 238U and 206Pb was examined to determine its approximate age. The sample of a rock…

A:

Q: 2. The half-life of radon-222 is 3.8 days. How much of a 100 gram sample is left after 15.2 days?

A: Given data contains, The half-life of radon-222 is 3.8 days. Mass of sample left after 15.2 days is…

Q: The half-life of tritium is 12.32 yrs. If 49.1 mg of tritium remains of a sample with an initial…

A:

Q: A rock containing 238U and 206Pb was examined to determine its approximate age. The molar ratio of…

A: Given half-life of U-238, t1/2 = 4.500*109 year  Decay constant, λ = 0.693t1/2 => λ =…

Q: A 26.00-g sample of water containing tritium, 31H, emits1.50 x 103 beta particles per second.…

A: In radioactive decay, radioactive atom's nuclei (unstable) eject energy as well as charged particles…

Q: (a) What mass of Na₂38SO4 has an activity of 11.7 mCi? Sulfur-38 has an atomic mass of 38.0 and a…

A:

Q: The half life of radium 226 is 1602 years. If you have 500 grams of radium today how many grams…

A:

Q: The half-life of tritium is 12.32 yrs.If 49.1 mg of tritium remains of a sample with an initial mass…

A: The question is based on the concept of chemical kinetics. we have to calculate how much time has…

Q: A sample of iodine-126 with an original mass of 15.00 mg loses 13.125 mg of the original mass of the…

A:

Q: The half-life of Po-214 is 0.001 seconds. How much of a 10 gram sample is left after 0.003 seconds?…

A: Rate of a reaction determines the speed with which a reaction proceeds. First order reaction is a…

Q: A moon rock collected by a U.S. Apollo mission is estimated to be 3.70 billion years old by…

A: Calculate the value of rate constant (k):

Q: The half life of 52Fe is 8.28 hours. Suppose we measure the activity of a sample containing 52Fe and…

A: Calculation of disintegration constant (λ):T1/2 of 52Fe is = 8.28 hours.

Q: 2. Gold-198 has a half- life of 269 days. What is the activity (in curies) o a 0.43 mg sample?

A: Activity is depends on the number of atom present

Q: A The half-life of barium-131 is 12 days. How many grams remains after 60 days if the initial sample…

A:

Q: The half-life of Zn-71 is 2.4 minutes. If one had 100.0g at the beginning, how many grams would be…

A:

Q: A moon rock collected by a U.S. Apollo mission is estimated to be 4.30 billion years old by…

A: Given: Age of rock = 4.30 billion years = 4.30 X 109 years Final mass of 238U remaining = 1.325 g…

Q: Cobalt-60, which undergoes beta decay, has a half-life of 5.26 yr. What is the activity of the…

A: The activity of a radioactive sample is measures as `N_0` counts per minute at. The activity of a…

Q: The half-life of Po-214 is 0.001 seconds. How much of a 10 gram sample is left after 0.003 seconds?…

A: We know radioactive decay follows first order reaction kinetics, therefore  t1/2=0.001 s and…

Q: What is the initial activity of a 5 g radioactive source of 60Co given that the specific activity of…

A: Since you have asked a question with multiple subparts, we will answer only first 3 subparts for…

Q: A 26.00-g sample of water containing tritium, 3 1H, emits 1.50 * 103 beta particles per second.…

A: In radioactive decay, radioactive atom's nuclei (unstable) eject energy as well as charged particles…

Q: 9. The noble gas radon has been the focus of much attention because it may be found in homes.…

A: Given: Radon-222 emits alpha particles. Half life = 3.82 days

Q: The half-life of sodium-24 is 15.0 hr. How many grams of this nuclide in a 3.00-g sample will remain…

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: An air sample from a Normal, Illinois basement was found to have a radon activity level of 0.722…

A: Answer:- This question is answered by using the simple concept of radioactive decay which follows…

Q: The half life of radium-226 is 1600 years. How many grams of a 0.25g sample will remain after 4800…

A: After decying the nucleus it emits radiation of electromagnetic rays ,of certain Wavelength.

Q: The half-life of radon-222 is 3.8 days. How much of a 100 gram sample is left after 15.2 days?

A: Half life is the time taken by the original compound to reduce to it's half.

Q: In a 3×109 -year-old rock that originally contained some 238U , which has a half-life of 4.5×109…

A: Since 238U has a half-life of 4.5 × 109 y, it is useful for dating only very old materials, showing,…

Q: The half-life of ZN-71 is 3.2 minutes. If one had 120.0g at the beginning, how many gram would be…

A: Half lives formula  used  2n=[A0]/At Where  n= Half lives

Q: Calculate the percent activity of the radioactive isotope cobalt-60 remaining after three…

A: Here we are required to find the percent activity of radioactive isotope of cobalt 60 remaining…

Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.