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The structures of atoms, what bonds are and how they are made, the periodic table as far as how to understand electrons and know how many in each element. Electronegativities and polar/ non polar bonds, hydrogen bonds.
Stoichiometry of reactions, When a mole of C7H16 is combusted, it reacts with 11 moles of O2. How many moles of CO2 product are obtained? How many moles of H2O product are obtained?
Electrical conductivity of a pure semiconductor like Si results from the thermal movement of electrons into the conduction band ii) pure Si doped with arsenic would act as a p-type semiconductor
The atomic mass of Potassium 39 is 38.96371 AMU. Calculate the binding energy for a mass of this nuclide using 1.008665 AMU for the mass of the neutron, 1.007276 AMU for the mass of the proton, 0.00054858 AMU for the mass of the electron
0.500 g of CuI was used to couple 2.0 mL of 1-hexyne what is the mole % of the CuI catalyst that was used? This is as Cu-catalyzed diazo coupling reaction that coupled ethyl diazoacetate with 1-hexyne.
how many grams of urea must be added to enough water to obtain 115 ml of a solution with an osmotic pressure of 2.7 atm at 35 degrees celsius
In Organic lab we are enabling trans to cis isomerizaton of E-1,2-dibenzoylethylene by irradiating the alkene with UV light.
How many grams of CO are needed to react with an excess of Fe2O3 to produce 209.7g Fe? Fe2O3(s) + 3CO(g) -> 3CO2(g) + 2Fe(s)
calculate the heat in joules released by the dissolving salt. Assume that the specific heat of the solution is the same as thar of pure water(4.184J/g- celcius) and that the calorimeter is perfect.
a 40 year old manager experiences abdominal pain post lunch. he goes to the restroom a couple of times but continues to
A piece of sodium metal reacts completely with water as follows. 2 Na(s) + 2 H2O(l) ->2 NaOH(aq) + H2(g) The hydrogen gas generated is collected over water at 25.0°C. The volume of the gas is 295 mL measured at 1.00 atm.
Silicon has a band gap of 1.1 eV at room temperature. What wavelength of light would a photon of this energy correspond to?
your friend decides to decrease cooking time for spaghetti noodles by adding table salt to 2.0 l water. how much table
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