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For an electron in a given atom, the larger n, the: a) larger the average distance from the nucleus and the higher the orbital energy. b) smaller the average distance from the nucleus and the lower the orbital energy. c) smaller the average distance from the nucleus and the higher the orbital energy. d) larger the average distance from the nucleus and the lower the orbital energy.
For the reaction A + B C, the rate constant at 215 degrees C is 5.0 X 10^-3 and the rate constant at 452 degrees C is 1.2 X 10^-1 a) What is the activation energy in kJ/mol?
A patient has 48 ml. of blood drawn and this volume of blood has a mass of 39.5 g. what is the specific gravity of the blood?
If globally averaged dry and wet deposition rates for SO_2 are 1.0kg/ha/yr and 5.0kg/ha/yr, respectively, then what is the lifetime of SO_2 due to the combined processes of wet and dry deposition? Assume temperature and pressure are 20*C and 1atm
Calculate the amount of energy that would be required to promote an electron from n=1 to n=100 in Li^2+
If a divalent metal ion is inserted in the center of the porphine ring, its charge will exactly balance the two negative charges of the dianion. Write a balanced equation for the reaction of tetraphenylporphyrin (which you can abbreviate as TPP) w..
What is the oxidation state of an individual nitrogen atom in KNO3. What is the oxidation state of each individual carbon atom in ?C2O4^-2
A cylinder with a moveable piston contains 0.90 mol of gas and has a volume of 342 mL. What will its volume be if an additional 0.22 of gas is added to the cylinder?
Explain the trituration process and why all of the CH2Cl2 solvent must be removed to yield piperine crystals
In order to maximize topographic contrast in SEM, would you use backscattered or secondary electron detector? Explain.
The solid calcium carbonate is placed in water. It reaches equilibrium and has a solubility product constant of 4.95 x 10-9. What is the concentration of calcium if the carbonate concentration
use oxidation number to show which element is oxidized and which element is reduced in this equation 2H2o2----2H2O+O2
How many grams of potassium lactate (KC3H5O3) must be added to 114.0 ml of 0.5 M lactic acid in order to prepare a buffer solution at pH 3.1? The pKa of lactic acid is 3.8.
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