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Ch.20 - Nuclear Chemistry
Chapter 20, Problem 113

The maximum allowable radiation dose for recovery workers at the Fukushima nuclear plant in Japan was set to 100 mSv. A gastrointestinal (GI) tract X-ray is 5 mSv. The radiation exposure of a Fukushima worker is equivalent to how many GI tract X-rays?

Verified step by step guidance
1
Step 1: Identify the total radiation dose limit for the Fukushima worker, which is given as 100 mSv.
Step 2: Identify the radiation dose of a single GI tract X-ray, which is given as 5 mSv.
Step 3: To find the number of GI tract X-rays equivalent to the total radiation dose, set up a division problem where you divide the total radiation dose by the dose of one GI tract X-ray.
Step 4: Perform the division: divide 100 mSv by 5 mSv to find the number of GI tract X-rays.
Step 5: The result of the division will give you the number of GI tract X-rays equivalent to the total radiation dose.
Related Practice
Textbook Question
The maximum level of radon in drinking water is 4.0 pCi (4.0 x 10^-12Ci) per milliliter. (a) How many disintegrations occur per minute in 1 mL of water at the maximum radon level? (b) If the radioactive isotope is 222Rn(t1/2 = 3.8 days), how many 222Rn atoms are present in 1 mL of the water?
276
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Open Question
Determine the activity of 10.0 mg of ²²⁶Ra in units of Bq and Ci. The half-life of ²²⁶Ra is 1600 years.
Textbook Question
Nitrogen-16 is formed in the cooling water flowing through a hot reactor core in a nuclear power plant. It is formed when oxygen captures a neutron and then emits a b par-ticle. Determine the activity of 50.0 mg of 16N in units of Bq and Ci.
1223
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Textbook Question
A proposed nuclear theory suggests that the relative abun-dances of the uranium isotopes 235U and 238U were approximately equal at the time they were formed. Today, the observed ratio of these isotopes is 7.25 x 10^-3. Give that the half-lives for radioactive decay are 7.04 x 19^8 are y for and 4.47 x 10^9 y for , calculate the age of the elements.
306
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Textbook Question
A small sample of wood from an archaeological site in Clo-vis, New Mexico, was burned in O2 and the CO2 produced was bubbled through a solution of Ba(OH)2 to produce a precipitation of BaCO3. When the BaCO3 was collected by filtration, a 1.000 g sample was found to have a radioactivity of 4.0 x 10^-5 Bq. The half-life of 14C is 5715 y, and living organisms have a radioactivity due to 14C if 15.3 disintegrations/min per gram of carbon. If the analysis was carried out in 1960, what is the date of the Clovis site?
312
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Textbook Question
Polonium-210, a naturally occurring radioisotope, is an alpha emitter, with t1/2=138 d. Assume that a sample fo 210Po with a mass of 0.700 mg was placed ina 250.0-mL flask, which was evacuated, sealed, and allowed to sit undisturbed. What would the pressure be inside the flask (in mmHg) at 20 degrees Celsius after 365 days if all the alpha particles emitted has become helium atoms?
714
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