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Problem- Calculate the radiation dosage (in grays) for an 77-kg person that is exposed for 3.0 seconds to a 3.0 Ci source of beta radiation. Assume that 100% of the radiation is absorbed and each beta particle has an energy of 2.0× 10-13 J.
Somebody please help I have no idea how to do this one
the water pressure compressed the balloon and reduced its volume. When the pressure had increased to 55.0 atm, what was the volume of the sample? Assume that the temperature was held constant.
Why are primary and secondary alcohols relatively easy to oxidize, but tertiary alcohols resist oxidation
The pH of the solution at equivalence was 8.4. At 9.3 mL the pH was 5.3. What is the Ka for this acid? Please show all the work
Which of these statements correctly describes a diamond?
A half-cell that consists of a copper wire in 1.00 M CuNO3 solution is connected by a salt bridge to a half cell containing a 1.00 M X(II) acetate solution and an electrode of metal X. The voltage of the cell is 1.37 V, with metal X as the positiv..
When iron metal is added to a solution of a silver salt, the iron goes into solution and the silver precipitates out according to the following:
Compute the energy per photon as well as the energy per mole of photons of radiation of wavelength (a) 200 nm (ultraviolet), (b) 150 pm (x-ray), (c) 1.00 (microwave).
How many milliliters of 5.00 M HCl solution are needed to provide the 1.50 moles of HCl needed for a reaction?
Part A Draw an orbital diagram for boron. Use this tool to draw the orbital diagram. Part B Draw an orbital diagram for scandium (Sc). Use this tool to draw the orbital diagram.
Calculate how many moles of gas was in the bicycle tire when the total volume of gas collected is 5.60L{rm L} at a pressure of 765torr{rm torr} and a temperature of 25 °C^circ {rm C}.
If 24.92mL of 0.01232 M NaOH solution are required to titrate 0.1932 g of an unknown diprotic (n=2) acid, explain what is the molar mass of the acid
How many moles of a reducing agent are used in a reaction containing 1.5L of this material which possesses a density of 0.8 and a molecular weight of 56
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