Gold-198 has a halflife of 2.7 days. How much of a 872.5 mg gold-198 sample will remain after 13.5 days?

Q: Sodium-24 has a half-life of 14.8 hours. How much of a 587.7 mg sodium-24 sample will remain after…

A: All radioactive decay processes follow first order kinetics.

Q: Lead-210 has a half-life of 22.3 years.   a) How much of a 102-mg sample would be remaining after…

A: Half life period is given by t1/2=0.693k Where, k is rate constant.

Q: A radioactive sample contains 1.55 g of an isotope with a halflife of 3.8 days. What mass of the…

A: Given details, t1/2 = 3.8 days t = 5.5 days m0 = 1.55 g To calculate the mass of the isotope. By…

Q: Radium-226 is radioactive and has a half life of 1600. years. How long would it take a sample to…

A:

Q: 21. Barium – 122 has a half-life of 2 minutes. Suppose you obtain a sample weighing 10.0 g and it…

A: 21. Given that: Half life of Barium-122 = 2 mins. Time taken for the set up = 10 mins

Q: Tin-129 is radioactive and has a half life of 2.23 minutes. How long would it take a sample to decay…

A:

Q: 55. 23. Potassium-40 has a half-life of 1.25x10^9 years. How many months will it take for one-half…

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Q: What is the half-life of an element that begins with 100g, and 18.8g remains after 113 minutes.

A: Half life of radioactive element-is the time needed for given number of its nuclei to decay exactly…

Q: Barium -122 has a half life of 2 minutes. Suppose you obtain a sample weighing 10.0g and it takes 10…

A: Since the decay reactions are first order reactions. Hence the half life of reaction will remain…

Q: Tin-129 is radioactive and has a half life of 2.23 minutes. What percentage of a sample would be…

A: Answer:

Q: Phosphorus-32 is radioactive and has a half life of 14.3 days. What percentage of a sample would be…

A: Given,Half-life of Phosphorus-32 = 14.3 days.Percentage of sample left after 31.7 days has to be…

Q: The radioisotope radon-222 has a Half-Life of 3.8 days. How much of a 73.9-g sample of radon-222…

A:

Q: Gold-198 has a half-life of 2.7 days. How much of a 488.6 mg gold-198 sample will remain after 13.5…

A: We have half life as 2.7 days, we have initial amount as 488.6 mg, we have to calculate the sample…

Q: Iodine-125 is radioactive and has a half life of 60.25 days. How much of a 7.20 mg sample would be…

A: The solution is as follows :

Q: If 10 grams of Uranium underwent three half-lives; how much uranium would be left?

A: The time in which half of the initial amount of the reactants convert into the product known as half…

Q: Phosphorus-32 has a half-life of 14.0 days. Starting with 6.00 g of 32P, how many grams will remain…

A: Given: The half-life of phosphorus -32 =14.0 days i.e. t1/2=14.0 days Starting amount of P=6.00 g

Q: If the initial amount of lead -196 is 4.8 g, how much lead -196 is left in the body after 74 min

A:

Q: A scientist obtains 64 grams of a radioactive isotope.  The isotope has a half-life of 3.2 days.…

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Q: 12) How much material is left when you start with 22.5-g and you have gone through 3.66 half-lives?

A: According to guidelines i can answer only first question. Please repost the other question…

Q: 210Rn has a half-life of 2.4 hours. You have a sample that contains 24 g of 210Rn. How much 210Rn…

A: The relationship between the half-life, T1/2 and the decay constant is given by  or,  The…

Q: Gold-198 has a half-life of 2.7 days. How much of a 344.7 mg gold-198 sample will remain after 13.5…

A: Given data: Half-life of Gold-198 (t1/2)= 2.7days Initial amount of Gold-198(A∘) = 344.7 mg Time for…

Q: I-131 has a half-life of 8.04 days. If a sample initially contains 20.0 g of I-131, approximately…

A: Interpretation -  To determine the amount of I-131 after 32 days when I-131 initially contains 20g…

Q: Phosphorus-32 has a half-life of 14.0 days. Starting with 6.00 gg of 32P32P, how many grams will…

A:

Q: Phosphorus-32 has a half-life of 14.0 days. Starting with 8.00 g of 32P, how many grams will remain…

A:

Q: Radioactive radon-222, found in many homes, is a potential health hazard. The half-life of radon-222…

A:

Q: 27. A radioactive substance weighs 30.0 grams and has a half-life of 2,460 years. How much will…

A: As  we know that all radioactive reactions are first order reaction. Given in the question, Mass of…

Q: Gold-198 has a half-life of 2.7 days. How much of a 275.1 mg275.1 mg gold-198 sample will remain…

A: All radioactive disintegration follows 1st orderkinetics.For 1st order reactionK=1t in AoAtK=Rate…

Q: How much of a 500 g isotope sample is left after 62 hours if the lag life is 6.2 hours?

A: Given data: Time (t) = 62 hours Amount of isotope (A0) = 500 g Half life = 6.2 hours Formulas: t1/2…

Q: A chemical substance has a half-life of 5 hours.If you start with a 133 gram sample when will there…

A: Introduction: We have to calculate the time when substance remaining is 2g.

Q: Copper(II) acetate containing Cu is used to study brain tumors. This isotope has a half-life of 12.7…

A: Radioactive decay: Radioactive decay or nuclear disintegration is a process in which an atom with…

Q: Hydrogen-3 is radioactive and has a half life of 12.3 years. What percentage of a sample would be…

A: Half-Life =12.3 years Time =13.0 years

Q: Thallium-201 is used medically to diagnose heart problems. The half-life of thallium-201 is 72.9…

A: Decay reactions are first order reactions. Since we know that, for different order of reactions, the…

Q: Lead-204 has a half-life of 15 minutes. Suppose there are initially 100 Pb-204 atoms. After 30…

A: The time in which half of the initial amount of the reactants convert into the product known as half…

Q: If the initial sample is 8.25 g, what mass of the original iridium‑192 remains after 105 days?

A: The nuclear reactions are a type of chemical processes which lead to the formation of some new…

Q: f 10.0mg of I-131 exists, how much will be left after 32 days?  (1/2 life of I-131 = 8 days)

A: Given : Initial mass of I-131 = 10.0 mg Half life = 8 days And time passed = 32 days.

Q: A patient is given a 0.05 of 6 hours. How long will it be until mg dose of e which has a holf-life…

A:

Q: Phosphorus-32 has a half-life of 14.0 days. Starting with 8.00 g of 32P, how many grams will remain…

A: Given Initial amount (N०) = 8.00 g Half life (t1/2) = 14 days time (t) = 42 days

Q: Radioactive radon-222, found in many homes, is a potential health hazard. The half-life of radon-222…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Radioactive radon-222, found in many homes, is a potential health hazard. The half-life of radon-222…

A: The half life of radon = 3.82 days. Initial amount = 37.9 mg  time = 4.70 days mass remains after…

Q: Phosphorus-32 has a half-life of 14.0 days. Starting with 4.00g of P, how many grams will remain…

A:

Q: Sodium-24 has a half-life of 14.8 hours. How much of a 595.7 mg sodium-24 sample will remain after…

A: Radioactivity are 1st order reaction- given T1/2=14.8 hourk=0.693t12⇒0.69314.8 hour=0.0469 hour-1

Q: How much of a 24 gram sample of radium 226 will remain unchanged at the end of three half life…

A: Given, sample of radium-226 has mass of 24 gram.

Q: A solution of sodium iodine containing the radioactive isotope lodine-131 was given to a patient. If…

A: These radioactive decay reactions are the first order reactions . In these type of reactions , rate…

Q: Calcium – 47 has a half-life of 4.5 years . How long will it take a 100 mg sample to drop to 12.5…

A:

Q: Cobalt-58 which is radioactive, has a half-life of 71 days. How

A: Radioactivity follows first order kinetics Hence decay constant (K) and t1/2 (half life ) related as…

Q: 1. Gold-191 has a half life of 12.4 hours. What mass of this isotope would remain after 49.6 hours…

A:

Q: Thallium-201 is used medically to diagnose heart problems. The half-life of thallium- 201 is 72.9…

A:

Q: Phosphorus-32 has a half-life of 14.0 days. Starting with 6.00 g of 32P, how many grams will remain…

A: The nuclear reactions are a type of chemical processes which lead to the formation of some new…