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State which of the following orbitals cannot exist according to the quantum theory 2s,2d,3p 4f and 5s
Sulfate becomes bound to four Al(CH3)3 fragments in the dianion [Al4(CH3)12SO4]^-2. Using the bond angles and lengths as a guide decide if the Al(CH3)3 groups alter the SO4^2- group significantly upon formation of the [Al4(CH3)12SO4]^-2 product. E..
a 10.00ml sample of drain cleaner, which contains NaOH, was titrated with 25.00ml of 1.00M HCl. calculate the number of moles of HCl added.
Determine how many grams of steam at temperature T steam = 100 degrees is required to prepare 1 gram of water at STP from 1 gram of ice at -20 degrees Celsius. Obtain general equation and assume you know all the necessary thermodynamic parameters.
The small bags of silica gel you often see in a new shoe box are placed there to control humidity. Despite its name, silica gel is a solid. It is a chemically inert, highly porous, amorphous form of SiO2
The mass of the displaced fluid is equal to the mass of the object in air, 50.0 g, minus the apparent mass of the object in the fluid, 5.6 g: What is the mass of the displaced water
if all the ice cream calories were to be butned off how long would it take him? i got 45 minutes?
One way to make a set of solutions of regularly decreasing concentrations is to make serial dilutions of the most concentrated one. a. starting with
The vapor pressure of an unknown compound at 25 degrees C is 94.6 Torr and its enthalpy of vaporization is 30811 J/mol. Estimate the normal boiling point of this compound. assume the enthalpy of vaporization is independent of temperature.
Calculate the osmotic pressure( in atm) of each of the following aqueous solutions at 20.00 degree C: a. 1.59 M methanol (CH3OH)
A liquid substance has a vapor pressure of 450.0 mmHg at 262.0 degrees celsius and 760.0 mmHg at 325.0 celsius. a) what is the heat of vaporization of this substance? b) what is its normal boiling point?
Br2 and ICl have similar molecular weights which compund has a higher boiling point specifically
A suitable storage place must be geologically stable long enough for the activity of plutonium-239 to decrease to 0.1% of its original value.
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