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Write the decay reaction for each of the following processes:
(a) a decay of 232U and 234Pu, 92 94(b) ß- decay of 45Ca and 212Pb, and 20 82(c) ß+ decay of 198F and 185O.
In each case, include the chemical symbol and values of Z and A of the daughter nucleus.
The air pollutant NO is produced in automobile engines because of the high-temperature reaction below. If the initial concentrations of N2 and O2 at 1000 K are both 1 M, what are the concentrations of NO, N2, and O2 when the reaction mixture reach..
A mixture consisting of 2.50×10!3 g of O2, 3.51×10!3 mol of N2, 4.67×1020 molecules of CO are placed in a vessel with a volume of 4.65 L at 15.4°C.
You wish to prepare a 0.5 liter solution of an acetate buffer having a pH of 5.0 and a concentration of .1M. The pKa of acetic acid is 4.74. How many moles of acetic acid and sodium acetate would you have to add to prepare this buffer
For each of the following states described in the following list, calculate the final pressure, as well as q, w, ?U, and H. a) the gas is expanded isothermally and reversibly until the volume doubles
an ideal gas at 25 ºC and 5 bar are expanded to a final pressure of 1.00 bar. Assuming Cv=3/2 R, calculate deltaU, deltaH, q, w, and DS if the process is
The current price of gold (per troy ounce) and unit conversions can be found in links at the bottom of the density page.
Calculate the probability that a quantum mechanical particle in a one-dimensional box will be found in the left quarter of the box through repeated measurements when it is in the lowest-energy state?
Calculate the H3O+ concentration and the PH for the following: a) a solution with OH- concentration= 4.5*10^-4 M? b) a solution with a pH of 5.6
A 29.0-g sample of water at 270. K is mixed with 48.0 g water at 340. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
Calculate the average speed of an oxygen gas molecule, O2, at 21.0 degrees Celsius. Express your answer numerically in meters per second.
In a controlled greenhouse at 30.0C and 1.0 atm a crop of seeding tomato plants was found to consume 380 L of carbon dioxide gas during photosynthesis. Assuming 100% yield what a mass of glucose was produced for the growing plants?
The solution has a density of 1.286 g/cm3. Calculate E for the cell. Assume all the H+ ions come from the first dissociation of H2SO4, which is complete.
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