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Compute the radiation dosage (in grays) for an 81 kg person that is exposed for 6.0 seconds to a 3.0 Ci source of beta radiation. Presume that 100% of the radiation is absorbed and each beta particle has an energy of 1.1*10^-13J.
The free energy change Delta G at 2400 K is equal to 1.22*10^5 J/mol. Calculate the equilibrium constant at 2400 K
Calculate the pH of a solution that is 0.295 M in sodium formate (NaHCO2) and 0.205 M in formic acid (HCO2H). the Ka of formic acid is 1.77x10^-4.
an element has hcp packing with a hexagonal unit cell. its density is 3000 kgm3 and the unit cell volume is 5.00 x
What will the concentration of alpha glucose be after equilibrium is attained? b. What will the concentration of beta glucose be? c. What would have happened if you began with 1M of beta glucose?
What is the pH of 0.20 M NaCl 2. what is the pH of 0.20 M NH4NO3 3. What is the pH of 0.20 M NaCH3COO
Which one of the following alkyl halides gives the lowest ratio of substitution to elimination on treatment with sodium ethoxide in ethanol.
Observe the d-orbitals on a central metal and use the character table to derive their irreducible representations (remember which column to look at). Circle any that are nonbonding for sigma interactions.
paris is one of my favorite european cities. this question relates to a possible problem with parisian drinking water.
calculate the change in enthalpy when 52.0g of cr at 25 degrees celsius and 1 atm pressure is oxidized.delta hf degrees
Using library resources determine if it is possible to construct a single cell battery that has a cell potential of at least 9 V. You must use realistic concentrations for full credit.
What is the ratio of ground state energy of atomic hydrogen
You find a log that could be spruce or birch. In order to figure out which is, you put the log in a big bucket and find that it displaces 2.7 gallons of water and it weighs 19.8 lbs. Is it spruce or birch? (Density of spruce 0.9 g/cm^3, birch 0.4 ..
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