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There is a vehicle accident containing a 2000 Ci source of Co-60 that you believe the container has been damaged and the Co-60 is exposed. What is the dose rate at 10 meters?
(1 Ci of Co-60 gives 1.13 rem/hr at 1 meter).
Hint. Calculate the dose rate at 1 meter then use the inverse square law.
A. 2260 rem/hr
B. 226.0 rem/hr
C. 22.60 rem/hr
D. 2.260 rem/hr
Consider the titration of 100.0 mL of 0.100 M H2NNH2 (Kb = 3.0 10-6) by 0.200 M HNO3. Calculate the pH of the resulting solution after 100.0 mL of HNO3 have been added
A sample of 0.0020 mole of HCl is dissolved in water to make a 2000mL solution. Calculate the molarity of the HCl solution, the {H3O}, and the pH.
Using the generalized compressibility charts, determine the actual volumetric flow rate. Assuming this answer is the correct, what is the % error of the answer from part
Starting from rest, the car is going 44 ft/s (30 mi/h) at the end of 5.0 s. What is the car's average acceleration in ft/s2?
How many moles of NaOH must be added to 1.0 L of 1.2 M HC2H3O2 to produce a solution buffered at each pH
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The following results were obtained for the determination of sulfur in a coal sample. The average for 4 trials was 1.94 %S with a standard deviation of 0.04 %S. Based on these data, report the 95% confidence limits for the average sulfur content.
Extract a solute from 100 mL of water using only 300 mL of ether. The partition coefficient between ether and water is 3.0. Calculate q, the fraction of solute that would remain in the water under each of the following extraction conditions
Draw the newman projections for all the staggered and eclipsed rotamers for 2-chloro-3-methylbutane down the c2-c3 bond and indicate which one is the highest energy rotamer, and which one is the lowest energy rotamer (assume a methyl group is bigg..
In an acidic solution of HCl. The products are H20, CO2, the Mn (II) ion, and potasium and chloride ions that do not take part in the reaction. A. How many grams of the products are produced by the oxidation of C6H14O3 B. Balance the equation in b..
Calculate the total interest cost over 180 days for a fixed-rate loan.
Equilibrium is established for the reaction 2X(s) + Y(g) ? 2Z(g) at 500K, Kc = 100. Determine the concentration of Z in equilibrium with 0.2 mol X and 0.50 M Y at 500K. A) 3.2 M B) 3.5 M C) 4.5 M D) 7.1 M E) None of these.
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