A first-order reaction has a rate constant of k = 0.00160 sec-1. How many seconds will elapse before the reaction is 60.0% complete?
Q: Q. 8: K.E. per unit volume is given by 3 2 (a) E=P (b) E=² 3 3 (c) E=mv² (d) None of these…
A: We need to compute- K.E. per unit volume=? The data given as- K.E. of gas molecules.
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A: a) Using the law of conservation of momentum, mTuT+mCuC=mTvT+mCvC5.0 Mg30 km/h+1.7 Mg10 km/h=5.0…
Q: Calculate the activity of a pure 9.5-μgμg sample of 32 over 15P (T1/2=1.23×106s).
A: Mass of sample (m) = 9.5 ×10-6 grams Molecular mass of P-32 = 32 grams Half life (T1/2) = 1.23×106…
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Q: Determine the reactions Ay and By at the supports A and B, respectively. Ax Reaction Ay 1. 7.4 2.…
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- 2. A vial contains 1900 MBq of Technetium-99m on the 18th June 2014 at 06:00. How much will it contain at 07:00 on the 19th June 2014? Please input your answer in Bq and Ci.Iodine-131 is a beta-emitter, which decay by the first-order rate law with a half-life of 8.0 days. What is the activity in cps (counts per second) of 25.0 ng (2.5 x 10–8 g) sample of 131I (atomic mass = 131 g/mol)? (Avogadro’s #, NA = 6.02 x 1023/mol) (A) 1.2 x 108 cps (B) 1.5 x 1010 cps (C) 1.0 x 1011 cps (D) 4.1 x 1011 cpsC Exercise 29.49 In a diagnostic procedure, a patient in a hospital ingests 66 mCi of gold-198 (t1/2 = 2.7 days). H Q Search Part A What is the activity at the end of one month, assuming none of the gold is e body by biological functions? Express your answer using two significant figures. AN At Submit 1.5 —| ΑΣΦ Provide Feedback X Incorrect; Try Again; 5 attempts remaining W Previous Answers Request Answer ? aCi
- Determine the reactions Ay and By at the supports A and B, respectively. Ay Reaction Av 1. 15.6 2. 18.7 3. 19.3 4. 17.5 Reaction By 1. 13.6 2. 14.8 3. 17.3 4. 16.7 8 k 3 ft 3 ft. 6 ft 24 k 6 ft 4 ft 4 k By3. A GM counter has dead time of 250 s. It records 20,000 counts per minute. What is the actual count rate? [Ans. 21,820]What is the decay probability per second per nucleus of a substance with a half-life of 22.5 hours?
- From the following data for the first-order gas- phase isomerization of CH3 NC at 215 °C, calculate the first-order rate constant and half-life for the reaction: Time (s) Pressure CH3 NC (torr) 4 Part A Calculate the first-order rate constant. Express your answer using three significant figures. 0 510 2000 345 5000 192 8000 107 12000 49 15000 27.3 Part B k ΜΕ ΑΣΦ Submit Request Answer 0 ? Calculate the half-life. Express your answer using three significant figures. ΑΣΦΑ Ο ΑΣΦ 1/2 ? 8-1 SWhat is the decay probability per second per nucleus of a substance with a half-life of 5.0 hours?Problem A You have a 5.7 mol pure sample of an unknown material. After 2 h, you discover that 44% has decayed. Determine the half-life, decay constant, mean life, & initial decay rate. Also determine what the decay rate is at 2 h. T1/2= λ = T= Ro= R= h-1 decays/h decays/h