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The accumulation of the electron density between the two nuclei lowers the potential energy during the formation of the bond. Compute the molar repulsion energy between two nitrogen's nuclei if they are separated by 1.1A? Presume that no electrons are present.
Zircon is a mineral with the empirical formula ZrSiO4. If all the zirconium is 90Zr, all the silicon is 28Si, and all the oxygen is 16O, what mass of oxygen is present in 10. g of zircon
suppose the barium sulfate weighed in the crudible above was not completely dry. how would this affect the
The to * transitions of purine and pyrimidine bases in DNA results in absorbance of light at 260 nm. If the extinction coefficient for a PCR primer of DNA is 1.00 x 104 M-1 cm-1
How many moles of oxygen are consumed when 100. L of dinitrogen pentoxide are produced in the following equation 2 N2 + 5 O2 ---> 2 N2O5
A method for determining the quantity of dissolved oxygen in natural waters requires a series of redox reactions. Balance the following chemical equations in that series under the conditions indicated
What is the correct order of the following inert electrolytes in their ability to increase the degree of dissociation of acetic acid?
The unit cell of platinum has a length of 392.0pm along each side. Use this length and your answer from part a (14 particles in unit cell, coordination #=12, 4 unique particles per unit cell) to calculate the density of platinum metal in kg/m3
Explain if the 21.45 gram blade metal is heated to 95 degrees C as well as placed into 56.6 grams of water initially at 20.0 degrees C, the final temperature of the water / metal bath becomes exactly 20.8064 degrees.
Explain an experiment that could prove that the ADH-catalyzed oxidation of ethanol to acetaldehyde is stereo specific.
A 3.18 L sample of hydrogen chloride (HCl) gas at 1.64 atm and 31 degrees C is completely disolved in 710 mL of water to form hydrochloric acid solution. Calculate the molarity of the solution. Assume no change in volume
What ratio of concentrations of the molecular base you chose in part a and its conjugate acid would be necesarry to achieve a pH of exactly 10.00?
Calculate the mass of water vapor produced when 6.00 L of propane (C3H8) gas undergo complete combustion at a temperature of 250C and a pressure of 1.00 atm.
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