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1.) What are the possible values of the principal quantum number n? A.) represented by the formula: k!, where k is a positive integer B.)all the integer: -3,-2,-1,0,1,2,3, etc. C.)represented by the formula: n = 2k + 1, where k is a positive integer D.)all the positive integers: 1,2,3, etc. E.)all the non-negative integers: 0,1,2,3, etc. 2.) What does the principal quantum number determine? Check all that apply. A.) the energy of an orbital B.)the shape of the orbital C.)the overall size of an atom D.)the orientation of the orbital E.)the overall size of an orbital F.)the possible number of electorns on particular orbital G.)the energy of the electron on the outer shell
Given a 4.50 L container of helium at 298 K and 1.00 atm, and a 3.00 L container of argon at 298 K and 1.00 atm, write a brief statement to explain whether or not atoms of He and Ar in their respective containers have the same average speed.
What mass of sucrose should be combined with 514 g of water to make a solution with an osmotic pressure of 8.85 atm at 295 K? (Assume the density of the solution to be equal to the density of the solvent.)
Amount of H2O2 in 15.8 g of hair bleach was obtained by titration with a standard KMnO4 soln.
Calculate the molar solubility of calcium hydroxide in a solution buffered at each of the following pH's.
dissolved in enough water to produce 162.5 mL of solution and that 18.8 mL of this solution is titrated to the stoichiometric point with 14.6 mL of 0.0307 M HCl(aq). What is the percentage purity of the original sample?
when 0.500 l of a 1.00 m solution of Pb( NO3) 2 is mixed with 0.500 l of a 1.00 m solution of Kl how many grams of lead(II) iodide are formed
What mass of NO2 can be produced by the complete reaction of 40.00 g of ammonia with 98.00 g of oxygen: 4NH3 + 7O2 4NO2 + 6H2O
Calculate the number of moles of quicklime, CaO, that would be produced by the decomposition of 30.0 moles of limestone, CaCO3, in the following reaction.
A 1.994g sample of ethanol, CH3CH2OH is combusted in a bomb calorimeter. The temperature of the calorimeter increases by 10.91. If the heat capacity of the bomb is 615.5j/k and it contains 1.150kg of water, what is the enthalpy chnge per mol of et..
HEPES are synthetic amine compounds that are often used to make buffers for biochemical studies. What is the pH of a 1.0 L buffer solution that is 0.250M HEPES
If the concentration of an acid in solution is 2.2 times larger than the concentration of its conjugate base, and the pH of the solution is 3.5, what is the pKa of the acid?
Using the information below, what is the most stable form of sulfur at 298K and 1atm? (no calculations needed) S(rhomic): V=0.016, delta H formation=0, delta G formation=0, Standard molar S=31.8, standard molar Cp=22.64 S(monoclinic)
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