2) What is the activity of a 1 gram sample of 1? (t12 = 3.38 x 10' seconds)

Q: About 0.0117% of the 600 mg of potassium in a typi- cal banana is radioactive potassium-40. If 1.00…

A: Given: 1) Mass of potassium in a typical banana is radioactive 0.0117% of the 600 mg of…

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 sample of wood from an Egyptian mummy case has a specific activity of 9.41 d/min-g. How old is the…

A: Solution: We know that --- for a sample of wood from an Egyptian mummy which is related to…

Q: A sample of cobalt-60 (t1/2 = 5.27 yr), a powerful g emitter used to treat cancer, was purchased by…

A: All radioactive decay processes follow first order reactions. Calculating rate constant for first…

Q: A sample of cobalt-60 was labelled as having an activity of 3.25mCi, but upon inspection, it…

A: Co-60 is used medically for radiation therapy as implants and as an external source of radiation…

Q: The carbon-14 activity of an artifact from a burial site was 9.2 min'gl. The half-life of carbon-14…

A: The C-14 decay reactions are first order reactions. Since we know that the relationship between the…

Q: What is the specific activity (in Ci/g) if 2.6 g of an isotope emits 4.13X10⁶ β⁻ particles per hour?

A: Curie(Ci) -is number of disintegration per second in 1g of radium-226 1Ci=3.70*1010dps

Q: What is the activity

A:

Q: A wooden artifact is burned and found to contain 21 g of carbon. The 4C activity of the sample is…

A:

Q: a wooden object from the site of an ancient temple has a carbon-14 activity of 10 counts/min…

A:

Q: Phosporous-32 half-life is 14.3 days. A vial containing 10ug of P-32 is accidentally spilled into a…

A:

Q: What is the specific activity (in Bq/g) if 1.07 kg of an isotope emits 3.77 × 10' B¯ particles per…

A:

Q: A nuclear technician was accidentally exposed to potassium-42 while doing brain scans for possible…

A: Given, Half life of potassium -42 = 12 hr activity of potassium -42 after 36 hr of exposure = 4.0 μC

Q: Carbon-14 has a half-life of 5730 years, how old is a dress that was found to have a specific…

A:

Q: Find the activity of a sample containing 1.51 x 10-6 g of  6027(Co) (T1/2 = 5.27 years).

A:

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

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: 60Co has a half-life of 5.27 yr. What percentage of its original activity will a sample of 60Co have…

A: Dear student,I am providing solution for Q.1 that you have asked as we are entitled to do one…

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: I can't figure this out. Help?

A:

Q: 100 43 3. The half-life of TC, a B emitter, is 15.8 s. (a) How many atoms of 43TC are present in a…

A: An isotope exhibits radioactivity or emits radioactive particles, when the nucleus of the isotope is…

Q: Some mammoth bones found in Arizona were found by carbon-14 dating to be 1.13x104 years old. What…

A: Given: Original activity = 15.3 disintegrations per minute per gram. Age of bones = 1.13 × 104…

Q: Q6: A fission reactor accident evaporates 5 x 10° Ci of 90Sr (T2=27.7 yr) into the air. The 9Sr…

A:

Q: some mammoth bones found in Arizona were found by Carbon-14 dating to be 1.113 x 1014 years old.…

A: We have The half-life of C14 is 5730 years t12=0.693k.......1 By rearranging the equation 1, we get…

Q: A wooden object from an archeological site is subjected to radiocarbon dating. The activity due to…

A: Given, The half life of 14C is 5715 yr. Activity of 14C is 11.6 disintegration per second Activity…

Q: What is the activity of a 28.3 µCi sample of carbon-14 in becquerels?

A: 1 Curie = 3.7 × 10^10Bq

Q: Half life iridium 192 is 106.51 days. How many days are required for 60 mg to decay to 7.5 mg

A:

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: 5.) A sample of bone has a specific activity of 5.22 disintegrations per minute per gram of carbon…

A: Given:

Q: Some mammoth bones found in Arizona were found by carbon-14 dating to be 1.13 x 10 4 y old. What…

A: The formula for decay of radioactive material is Nt = No (1/2)t/t1/2 where, Nt = number of…

Q: What is the radioactivity of the sample of sodium-24 after 30 hh? Express the activity to two…

A: Given that  We have sample of sodium-24 We have to calculate radioactivity of thie sample after 30…

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

A: The half-life of a reaction is the time taken for the reactant to reduce to half its initial value…

Q: A piece of a spear handle is found in an archaeological dig in Central America. It contains 35.2% as…

A:

Q: Cobalt-60, which undergoes beta decay, has a half-life of5.26 yr. (a) How many beta particles are…

A: Half life: It is the amount of time taken by a radioactive material to decay to half of its original…

Q: Bromine has a half-life of 36 hours. A sample containing Br-82 was found to have an activity of…

A:

Q: A moon rock collected by a U.S. Apollo mission is estimated to be 3.50 billion years old by…

A: Given : Time = 3.50 billion years old. Mass of uranium-238 = 1.540g Half life = 4.47 x 109 years

Q: a. Write the β- decay reaction.  b. What is the initial number of Cs-137 atoms in the sample?   c.…

A: Nuclear kinetics follows first order kinetics and all formulas of first order reaction is applicable…

Q: The half-life of carbon-14 is 5730 years. The wrapping of an Egyptian mummy gave off 3.8 counts per…

A: From the given data we haveHalf life of carbon-14=5730 yearsWrapping of mummy=3.8…

Q: Radium-226, which undergoes alpha decay, has a half-life of 1600 yr. (a) How many alpha particles…

A: All radioactive decay processes follow first order reactions. Calculating rate constant for first…

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

A:

Q: The cloth shroud from around a mummy is found to have a 14C activity of 8.3 disintegrations per…

A: Given, The initial decay rate of carbon of cloth = 8.3 dis/min. The decay rate of carbon for living…

Q: activity

A:

Q: If the half-life of a 2.0 gram sample of a radionuclide is 15 hours, then the half-life of a 1.0…

A: Given: Initial mass of sample = 2.0 g. Half-life of sample = 15 hours. And final mass of sample =…

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…

Q: Os-182 has a half-life of 21.5 hours. How many grams of a 10.0 gram sample would have decayed after…

A:

Q: Calculate the percent activity of the radioactive isotope iodine-131 remaining after two half-lives.…

A: Interpretation -  Calculate the percent activity of radioactive isotope iodine -131 remaining after…