Chemical Kinetics and Nuclear ChemistryHard
Question
A sample of 53I131, as I- ion, was administered to a patient in a carrier consisting 1.0 mg of stable I- ion. After 4.0 days. 60% of the initial radioactivity was detected in the thyroid gland of the patient. What mass of the stable I- ion had migrated to the thyroid gland ? Given: t1/2 of I131 = 8 days
Options
A.0.65 mg
B.0.75 mg
C.0.85 mg
D.0.95 mg
Solution
k = 
∴
≈ 0.7 ⇒ 70% of the initial activity is present.
Given that 60% activity is migrated to thyroid gland. weight of I- ion migrated to thyroid gland is:
× 100 ≈ 05.7%
i.e., 1.0 mg ×
= 0.857 mg
∴
≈ 0.7 ⇒ 70% of the initial activity is present.Given that 60% activity is migrated to thyroid gland. weight of I- ion migrated to thyroid gland is:
× 100 ≈ 05.7%i.e., 1.0 mg ×
= 0.857 mgCreate a free account to view solution
View Solution FreeTopic: Chemical Kinetics and Nuclear Chemistry·Practice all Chemical Kinetics and Nuclear Chemistry questions
More Chemical Kinetics and Nuclear Chemistry Questions
When the temperature of a reaction system is increased by 10°C (from 25°C to 35°C) at constant volume, the reaction rate...The rate constant of a second-order reaction is 10−2 lit mole−1 s−1. The rate constant when expressed in ml molecule−1 m...Two first order reaction have half lives in the ratio 8 : 1. Calculate the ratio of time intervals t1 : t2. The time t1 ...An α-particle is given out by 92X238, the new species Y would be :...Which of the following graphs represents zero order if A → PAt t = 0 ⇒ [A]0At t = 0 ⇒ [A]t...