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Examine the diagram of the anti-bonding molecular orbital that results from the out-of-phase combination of two 1 s atomic orbitals. Why is the left atomic orbital labeled (+) and the right one label.
The stopcock between a 3.00 L bulb containing oxygen at 295 torr and 1.00 L bulb containing nitrogen at 530 torr is opened. What is the total pressure of the mixture.
The molar heat of fusion of water is 6.01 kj/mol. How much heat energy is required to melt one ice cube in a soft drink to form liquid water a 0 degree celcius, if the ice cube has a mass of 18.9 g?
0.00334 moles (total) of NaOH were added to an aspirin solution. 0.000884 moles of HCl were required to back titrate the excess NaOH to a colorless endpoint. Explain how many moles of aspirin are in the sample
A sample of helium gas has a volume of 8.23 L at 258.8 K and 2.049 atm. How many helium molecules does it contain
Potassium permanganate is known to be 24.74% potassium as well as 34.76% magnesium by mass the rest being oxygen. If one decomposed a 100 pound sample of potassium permanganate, explain how many kilograms of oxygen should be produced
What is the reaction mechanism (detailed with arrows) for trans-cinnamaldehyde when reacted with benzyltriphenylphosphonium chloride?
What is the cell potential when the concentration of Cu2+ has fallen to 0.250M? 2. What are the concentrations of Pb2+ and Cu2+ when the cell potential falls to 0.370V?
It is again evacuated and then filled with a gas of unknown molar mass. When reweighed, the flask is found to have gained 8.108 g.
Question- John titrates an unknown weak acid with 0.200 M KOH. At the equivalence point, the pH was 7.72 and John added 34.4 mL of base. When he had only added 17.2 mL of KOH, the pH was 3.58. What is the Ka of the weak acid
The skeletal structure of one molecule is included to indicate the proper format; modify the X\'s on the given structure to create the first stereoisomer.
Why must the free-radical polymerization reaction be heated when it is not necessary to heat the ionic polymerization
Calculate the number of ATP molecules that are produced from the biological oxidation of one molecule of each of the following to CO2 and H2O
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