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1. Briefly describe the adverse effects caused by exposure to radiation. Include some specific exposure levels associated with these significant health effects. Lastly, give some examples of measured radiation levels associated with the Three Mile Island incident in the U.S. and in the Chernobyl incident in the Soviet Union. Provide your reference source(s).
2. The best means of personal protection from radiation for emergency responders is the implementation of three basic principles: time, distance and shielding. Please show your work when answering the following questions:
a. Using the inverse square law of radiation, what Geiger counter reading would you get for a radioactive material when you are 3 feet from the source (assume an initial reading of 6300 R at a distance of 1 foot from the source)?
b. Dr. Brown has a radioisotope source containing 1.2 x 106 (also written as 1.2E+06) atoms of Plutonium-238 in 1985, how many atoms will remain in 352 years?
c. How many protons and neutrons are present in the plutonium-238 nucleus?
The mass percent of an element in a compound is the mass of the element (total mass of the element's atoms in the compound) divided by the mass of the compound (total mass of all atoms in the compound) times 100%. What is the mass percent of each ..
Question- Sodium sulfate is slowly added to a solution containing 0.0500 M Ca2 (aq) and 0.0400 M Ag (aq). What will be the concentration of Ca2 (aq) when Ag2SO4(s) begins to precipitate
An oxygen tank contains oxygen at a pressure of 70 kPa. When the pressure drops to 36 kPa, the temperature increases from 300 K to 350 K. If the initial volume is 9 L, what is the final volume?
a sample of nitrogen gas occupies 1.55 l at 27.0c and 1.00atm. what will be the volume be at -100.0 C and the same pressure
Sulfhydryl groups have the ability to react with the alkylating reagent N-ethylmaleimide (NEM) in chemical modification experiments. When NEM is added to a purified solution of creatine kinase
A reaction has ?G = 10.0 kJ and ?G° = 15.0 kJ at a temperature of 50 °C. Calculate the value of the reaction quotient Q under these conditions.
dinitrogen monoxide gas and 3.41g of carbon dioxide gas. You can assume both gases behave as ideal gases under these conditions. Calculate the mole fraction of each gas. Be sure each of your answer entries has the correct number of significant digits..
Calculate the percent ionization of hydrosulfuric acid (H2S) in solutions of each of the following concentrations (Ka = 9.5e-08.)
The equilibrium constant Kp for the reaction ; CCl4(g) C(s) + 2Cl2(g) at 700 celcius is 0.76 atm. Determine the initial pressure of carbon tetrachloride
Formaldehyde (CH20) has many utilizes in the chemical industry. Numerous million tons are produced each year to use in photography, fabrics and particle bond. Presume a particular formaldehyde solution was known to be 5.52% (by mass) formaldehyde ..
If 110. g of ethanol is needed for a chemical reaction, how many litres of ethanol would be required. (The density of ethanol is 0.789 g/ml).
Determine the number of milliliters of standard 0.1000 M NaOH needed to make 250.0ml of NaOH solution with 0.040 M
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