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CHEMWORK A certain radioactive nuclide has a half life of 1.00 hour(s). Calculate the rate constant...
CHEMWORK Scenario: A certain first-order reaction is 66 percent complete in 65 seconds. Calculate the half-life for this reaction 1/2 Submit Submit Answer Try Another Versiorn 10 item attempts remaining
Radioactive Decay - Half-life and Activity 1 Radioactive decay - Half-life Time 0 1000 21 31 750 N 1.000.000 500,000 250,000 125,000 62,500 31.250 15.625 7813 3.506 1.953 977 51 6 500 7 BI . 101 250 125 0 tie 21.234.41516171819, 1012 Time in multiples of A radioactive sample's half-life is 30.2 years. 1 year = 365 days, 1 day = 24 hours, 1 hour - 60 minutes, 1 minute = 60 seconds (a) Find its decay constant in year...
A certain radioactive nuclide has a half life of 50.7 years. How long does it take for 87.5% of a sample of this substance to decay? years Submit Hide Hints Hint 1 Hint 4 Hint 3 Hint 2 What percentage of the original sample has decayed after two half lives have elapsed?
A certain radioactive nuclide has a half life of 74.8 years. How long does it take for 87.5% of a sample of this substance to decay? ___years?
A certain radioactive nuclide has a half life of 44.3 years. How long does it take for 87.5% of a sample of this substance to decay? years
CHEMWORK What is the mass percent for each element in 1 mole of barium nitrate? (Enter your answer to four significant figures.) bariumF nitrogen oxygen Submit Show Hints Submit Answer Try Another Version 3 item attempts remaining
If the mass of a sample of radioactive thallium-206 decays from 94.3 micrograms to 34.5 micrograms in 6.08 minutes, what is the half-life of thallium-206? minutes Submit Answer Try Another Version 2 item attempts remaining
CHEMWORK Use the symbols shown in the information below to fill in the particle produced in each of the nuclear reactions. Particle Symbol to use 0 e+ He H on р Complete the following table: Initial Nuclide Ев Product Nuclide Be Particle Produced (use symbol shown above) 239 pa 239 93 240p 206 84 60 60 27 CO 23pa 94 92 Submit Show Hints Submit Answer Try Another Version 9 Item attempts remaining
please help with b-d! *10-19-1 A radioactive sample's half-life is 30.2 years 1 year - 365 days, 1 day - 24 hours, 1 hour 60 minutes, 1 minute - 60 seconds (a) Find its decay constant in year 1. Keep 4 decimal places. 0.6229 Correct (100,0%) Submit Find its decay constant in sl. Write the result in terms of 10 10,9 Keep 4 decimal places. 7.2764 Correct (100.0 Submit Case 1: The Initial sample is 3.30 kg. (b) What is...
The half-life of a certain radioactive element is 48.0 hr. a) Determine the decay constant in s^-1. b) If we started with 100.0 grams of this element, how much would be present in grams after 20.0 days? Work this out using the exponential decay formula.