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Radiation, chemicals, isotopes
1. What types of bombs were dropped on Hiroshima and Nagasaki, resulting in Japans surrender at the conclusion of WWII? What isotopes were used in the bombs? What were the long term effects of these bombs?
2. How much radiation is someone exposed to during a routine xray? How much radiation are people exposed to naturally from cosmic radiation and the earth? Are there places on earth where individuals are likely to receive higher doses of radiation relative to another location? What accounts for these differences? What level of exposure is considered safe by the US Government?
3. Formulate an all purpose cleaner consisting of simple chemicals for example, cornstarch, cream of tartar, epsom salt, etc...Clearly state why you chose each ingredient and what you believe tht ingredient would be useful for. Be aware of chemicals that will neutralize or otherwise decrease the effectiveness of other chemicals in your mixture; example if incompatible ingredients might include acids with bases, etc...Critique the formulations of other chemicals constructively and suggest possible improvements or modifications.
Calculate E when 900.0 g of CH3OH(g) completely reacts at a constant temperature of 300 K and constant pressure of 0.95 atm. R = 8.314 J/mol*K and R = 0.08206 atm*L/mol*K
Considering the given equation Fe2O3 (s) + 3 CO (g) ? 2 Fe (s) + 3 CO2 (g) this is The overall reaction for the production of iron from iron ore (Iron (III) oxide) determine How many kilograms of iron are required to form 10,000 kilograms of Fe?
Compute the vapor pressure at the temperature of 25 degree Celsius of H 2 O above a solution formed by mixing 100.
Enantiomers and Order of Elution, The enantiomers (R and S forms) of the following chiral alcohols need to be separated by a suitable CHIRAL SEPARATION method.
Concentration of H 2 is observed 2.15 moles/L When the reaction N 2 (g) + 3 H 2 (g) ?? 2 NH 3 (g) comes to equilibrium. Determine the numerical value of the Kc equilibrium constant?
Compute the pH of a solution made by mixing 67 grams of sodium acetate, NaCH 3 COO, to 37 g of acetic acid, CH 3 COOH, and dissolving in H 2 O to form 300. mL of solution ?
The work function of an element is the energy required to remove an electron from the surface of the solid element. The work function for lithium is 279.7 kJ/mol.
Non-Bridging Calcium-Oxide Ions, What weight percent of CaO should a glass be for 20% of the oxygen ions to be non-bridging, if the glass contains only SiO2 and CaO?
Compute the equilibrium partial pressures of Carbon dioxide and CO gases. If equilibrium constant Kp for this reaction =1.52,
Determine the specific heat of a metal object of 19 grams that is heated to 96 degrees Celsius and added to a calorimeter containing 75 grams of H 2 O at 18 degrees Celsius.
Provide the newman projections across the C 2 -C 3 bonds for the major conformers after Drawing the zig-zag structures of all the isomers of 2,3-diaminopentane.
Organic Reactions - Cyclopentadiene, Why is cyclopentadiene monomer more stable at higher temperatures although dicyclopentadiene (dimer) is more stable at lower temperatures?
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