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How does electron configuration work? If I have [Ar]3d^5 as an example how do I know what it actually equals?
How many mL of 2.56M solution of KCl are required to prepare 500.0 mL of 1.33 L of a 0.175M KCl solution
At a certain temperature, the pH of a neutral solution is 7.45. What is the value of Kw at that temperature
How do you account for the following facts: formic acid, HCOOH contains one carbon oxygen bond of 1.36 A and another of 1.23 A yet sodium formate, HCOO- Na+, contains two equal carbon oxygen bonds, each of 1.27 A.
How many liters of CH4 (g), measured at 23.4C and 768mmHG, must be burned to provide the heat needed to vaporize 3.78 L of water at 100C? DeltaHcomb= -8.90x10^2 KJ mol CH4. For H2)(l) at 100 C, d= 0.958 g cm and deltaHvap=40.7KJ mol.
Estimate the average area of a cell in square micrometers, and the diameter of a single cell in micrometers, using the data below. Assume the cells are roughly spherical. What is the average cell surface area
Calculate the kinetic energy of 2 kg of helium gas at 25 C. If this energy could be captured and used to accelerate a 1400.0 kg automobile, how fast would the car travel on a flat surface (ignoring friction)
Which salts are more effective for cold and hot packs, KNO3, NH4NO3, MgSO4, CaCl2, MgCl2? which are most cost effective? Maximum and minimum T for both?
Calculate the volume occupied by 1.00 mol N2 using the van der Waals equation in the form of a virial expansion at (a) its critical temperature, (b) its Boyle temperature,
The black silver sulfide discoloration of silverware can easily be removed by heating the silver article in a sodium carbonate solution in an aluminum pan.
Considering all the bonds in a molecule with trigonal bipyramidal geometry, what are the bond angles present
The velocity of the electron ground state hydrogen atom is 2.2x10^6 m/s. What is the wavelength of this electron in m
What is the maximum concentration, in mol/L and mg/L, of Cu^2+ and Zn^2+ in a solution that contains both ions if the pH is (a) 10.00, (b) 11.00, (c) 12.00
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