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1) Why do we discuss electrons in terms of the probability of finding them in an orbital instead of in terms of absolute locations
2) Why are there no 1p orbitals?
3) What is the probability of finding an electron at the point where the two halves of a p-orbital come together? What is this point called?
4) Think about a helium atom. Without using actual numbers, compare the first and second ionization energies and explain why they are different. Remember that both electrons come from the 1s orbital.
Determine the mass percent of CH3COOH in this solution if density of vinegar is 1.01 g/mL? Also calculate mole fraction of acetic acid in this solution and molality of this solution?
for each of the following sets of pressurevolume data calculate the new volume of the gas after the pressure change is
A Solution is prepared by dissolving 27g urea in 150g water. Calculate the boiling point of the solution. Urea is a nonelectrolyte
If the coal is burned in a power plant that uses 1800 tons of coal per day, what mass of calcium oxide is required daily to eliminate the sulfur dioxide?
Which silver salt will precipitate first? Show calculations to support your answer. What is the concentration of Ag+ when the first precipitate begins to form?
one of the steps in the commercial process for converting ammonia to nitric acid involves the conversion of nh3 to
What is the system that is buffered, what is the pH of the system and what compounds are responsible for the buffered system?
Calculate the indicated quantities for a system consisting of 1 mol of N2 gas. Assume ideal gas behavior. a) The gas initially at 10 atm pressure is expaneded tenfold in volume against a constant external pressure of 1 atm, all at 298 k. Calculate ..
next titrates an unknown sample with this DCP solution and reaches the end point at 40.5 mL. How many mg of ascorbic acid were present in the unknown sample
Radioactive nitrogen-13 has a half-life of 10 minutes. After 40 minutes, how much of this isotope would remain in a sample that originally contained 96 mg?
Calculate the work in kilojoules done during a synthesis of ammonia in which the volume contracts from 8.8L to 4.3L at a constant external pressure of 46 atm
alcohol dehydrogenase. Assume all of the ethanol gets converted to acetaldehyde.a) What will the final concentration of NADH be in the solution?
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