What is the rate constant if 40% of the 0.6 M H2O2 is consumed in 50 minutes from the 1st degree decay?

Q: What is the rate constant if 40% of 0.25 M H2O2 is spent in 50 minutes from the second degree decay?

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Q: The decay of radioactive copper-64 follows first order kinetics with a half-life of 12.8 hours. a)…

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Q: Consider the radioisotope 235U (half life = 7.04 × 108 years). What is the first order rate %3D…

A: Given, the half-life of U235 = 7.04 × 108 years We have to calculate the first-order rate constant…

Q: 9. A sample of a compound is found to have a half-life of 14.65 seconds. Answer the following…

A: Given:  The half life of the compound = 14.65 seconds

Q: The radioactive isotope of lead , Pb-209, decays at a rate proportional to the amount present at…

A: Given information: Half-life = 3.3 hours Amount decayed = 90%

Q: The half-life of a radioactive element in the first order reaction is 45 minutes .How long will it…

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Q: Consider the radioisotope ²²⁶Ra (half life = 1.60 × 10³ years). What is the first order rate…

A: Using the formulas of first order kinetics we can solve this problem.

Q: Although most natural potassium nuclei are stable K (93.3%) or **K (6.7%) nuclei, about 0.0117% are…

A: Potassium exists in nature in form of two isotopes : 1. 39K ; Abundance = 93.3 %  2. 41K ; Abundance…

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Q: The half-life of 90Sr is 28 years. How long will it take for a given sample of 9°Sr to be 83%…

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Q: What is the half-life of a sample if after 40 years 12.5g of an original 0.4kg sample is left?

A: Given that,  Initial mass of sample = 0.4 kg = 400 g  Mass of sample left after after 40 years =…

Q: Strantium 90 is a major component of the detonation of nuclear explosives, it is particularly…

A: Radioactive substances disintegrate in nature due to their instability. The disintegration process…

Q: The first-order decay of thallium-201 is used to image heart muscle in patients with suspected heart…

A: The half-life of the thallium-201 is = 73 h The percent reactivity of the thallium-201 after 48 h is…

Q: Consider the radioisotope "Ca (half life = 1.03 × 105 years). What is the first order rate constant…

A: Rate constant is 6.73 x 10-6 yr-1

Q: Iron-59 is a radioisotope used to study iron metabolism in the spleen. It has a half-life of 44.5…

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Q: 5) Consider the reaction shows below. A can decay to two products, labeled B and C. Both decay…

A: Answer: This question is based on parallel reaction where one compound is forming two products…

Q: (5) Radioactive decay is measured in terms of "half-life", which is the number of years required for…

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Q: Cobalt – 60 used in cancer therapy, decays by beta and gamma emission. The decay constant is…

A: Consider the given information is as follows; Decay constant λ = 4.18×10-9/s Half-life t12 = ?

Q: The reaction of Glucose with oxygen is given as: CHO, +60, 6CO, +6H,0 12 9. For a solution of 108.5…

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Q: A radioactive element decays by 1st order kinetic. It takes 7 days for 5 mg of this radioactive…

A: As the radio active decay is first order decay and for first order reaction the rate constant is…

Q: The radioactive nuclide 170Ta undergoes first-order decay with a half-life of 6.76 min. If a…

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Q: Chromium-51 is a radioisotope that is used to assess the lifetime of red blood cells The half-life…

A: Given: The half life, (t1/2)=27.7 days. The initial concentration of Cr-51=28.7 mg 981

Q: (c) The radioactive decay of nuclides is a first order process. Strontium-90 decays via yttrium-90…

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Q: The half-life of bromine-74 is 25 min.  How much of a 4.0 mg sample is still active after 75 min.

A: The integrated rate law expression for the first-order kinetics is: k = 1tlnAoAAo = initial…

Q: The age of wine can be determined by measuring the trace amount of radioactive tritium. Tritium is…

A: Radioactive decay follows first order kinetics. Tritium is a radioactive isotope of hydrogen and…

Q: Fluorine-18 is a radioactive isotope that decays by positron emission to form oxygen-18 with a…

A: The radioactive decay is considered as first order reaction. the rate law is given…

Q: 9. A sample of a compound is found to have a half-life of 14.65 seconds. Answer the following…

A: This question is related to chemical kinetics.  A first-order reaction is a chemical reaction in…

Q: Technetium-99 is often used for assessing heart, liver, and lung damage because certain technetium…

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Q: 1311 is an isotope of iodine used for the treatment of hyperthyroidism, as it is readily absorbed…

A: Given that half life of sample is 24 days.

Q: Consider the radioisotope 226Ra (half life = 1.60 x 10' years). What is the first order rate…

A: Given the question in half life of Ra is 1.60×103 years.  Calculate the rate constant of first order…

Q: Tritium,3 1 H , an isotope of hydrogen has a half-life of 12.33 years. Its decay constant in years-1…

A: Halflife of Tritium , t1/2 = 12.33 years Decay constant , k = ?

Q: 3. One of the radioactive nuclides formed in nuclear power plants is hydrogen-3, called tritium,…

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Q: The half life for the radioactive decay of carbon-14 to nitrogen-14 is 5.73x 10^3 years. Suppose…

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Q: The rate constant for the decay of copper-62 is 9.8 minutes. What is the half-life of this isotope?…

A: Half-life of a reaction is the time in which half of the reaction completes. This means that the…

Q: The half life of bromine-74 is 25 min. How much of a 4.0 mg sample is still active after 75min

A: Since the decay reactions are first order reactions  Hence the half life = ln(2) / K where K = decay…

Q: Iodine-131 has a half-life of 8.1 days and is used as a tracer for the thyroid gland. If a patient…

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Q: The rate constant for the decay of a radioactive element is 5.96 × 103 day1. What is the half-life…

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Q: Consider the radioisotope ²³⁵U (half life = 7.04 × 10⁸ years). What is the first order rate constant…

A: The reaction is given first order. And half life = 7.04 X 108 years

Q: The decay constant of 235U is 9.8 × 10^−10 y^−1. How many 235U atoms will remain in a 1.0 µg sample…

A: Given,

Q: The radioisotope sodium-24 is used to determine the levels of electrolytes in the body. A 16microg…

A: The term half life can be defined as the time taken by a given quantity to reduce to half of the…

Q: The half-life of the radioactive isotope 137Cs is 30.17 years. How long does one have to wait until…

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Q: Technetium-99 is often used for assessing heart, liver, and lung damage because certain technetium…

A: The radioactive elements are used for assessing of damage in body.The radioactive elements decay…

Q: Fluorine-18 is a radioisotope widely used in positron emission tomography to investigate brain…

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Q: Sodium-24 has a half-life of 15.0 hours. Suppose you had a sample containing 0.010 moles of Na-24.…

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Q: The first-order decay of radon (Rn) has a half-life of 3.823 days. How many grams of Rn will have…

A: Given:  The half-life of Radon = 3.823 days Initial amount of Rn sample = 100.0 g Time for…

Q: Consider the radioisotope ⁴¹Ca (half life = 1.03 × 10⁵ years). What is the first-order rate constant…

A: We know that All the radioactive substances follow first order kinetics. the half life and rate…

Q: The rate constant for the radioactive decay of 14C is 1.21 × 10-4 year-1. The products of the decay…

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Q: 2. Tellurium-123 is a radioactive isotope occurring in natural tellurium. The decay constant is 1.7…

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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.