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1) Calculate the energy required to remove the electron from hydrogen atom in its ground state (En-182 = -2.18 x 10 J (1/n).?
2) For the element Sulfur
a) Write the electron configuration
b) Write the noble gas short hand notation
c) Write the orbital notation (i.e., Aufbau methodology with the box "thingies")
d) Write the noble short hand notation for the possible ion
e) Write the orbital notation for sulfur in an excited state.
3) Based on the periodic trends determine if Nitrogen or Fluorine is the larger atom. Explain your choice.
4) A nitrogen gas laser pulse, with a wavelength of 337 nm, contains 3.83 mJ of energy. How many photons does it contain?
A standard analysis for determining the amount of oxalate ion, C2O42-, in a sample is to precipitate this species as calcium oxalate, which is insoluble in water. Write the net ionic equation for the reaction between sodium oxalate and calcium chl..
Draw the organic product(s) of the reaction of p-methylbenzoic acid with LiAlH4, then H3O+ in the window below. If no new products are formed, tell OWL by drawing ethane, CH3CH3.
in the formation of diacetylferrocene the product is always theone in which each ring is monoacetylated. why is
The Ka of methyl ammonium bromide is 2.3e-11 and the Kb for methyl amine is 4.4e-4.
The equilibrium expression for the reaction: 2C(s) + 2H2O(I) ? CH4(g) + CO2(g) is Keq = [CH4][CO2]. If an equilibrium reaction shifts to the right when the system is cooled, this indicates that the reaction is endothermic
What mass of NO2 can be produced by the complete reaction of 43.00 g of ammonia with 105.00 g of oxygen:
Describe the effect that a second or third pair of shared electrons between two atoms (double or triple bonds) might have on the shape of the molecule.
What mass of MgCl2 in grams must be added to 1.00 kg of water to prouce a solution that boils at 103.0 degrees celsius
For the reaction of iodine atoms to form I2, the experimental rate law is Rate = k[I]^2. What are the units for k if the unit of time is seconds
A solution contains 0.750 M HA (Ka = 1.0 x 10-6) and 0.250 M NaA. What is the pH after 0.100 mole of HCl is added to 1.00 L of this solution
Explain what is the concentration of ammonia in a solution if 20.45mL of a 0.1165 M solution of HCI are needed to titrate a 100.0mL sample of the solution
When sulfuric acid is a component of polluted air, it chemically attacks statues, memorials, and monuments made from limestone. Given that the most common mineral in limestone is calcium carbonate
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