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Discuss why is the use of Schrodinger's wave equation to explain the location of a particle very different from the description which is obtained from the classical physics?
According to the Bohr model, an electron in the ground state of a hydrogen atom orbits the nucleus at specific radius of0.53 angstroms. Discuss why are these two statements different?
Explain what must the total pressure be for the partial pressure of the oxygen to be 0.21 atm? A diver breathes heliox mixture with an oxygen mole fraction of 0.050.
Determine the pressure on the gas trapped in the burette if the height of the mercury column in the leveling bulb is 40 mm greater than that in the gas burette and the atmospheric pressure is 650 mm
Illustrate by the mathematical equations how one can calculate the molar mass of a volatile liquid by the measurement of the volume, pressure, temperature, and mass of the liquid.
Explain why is it desirable to use the minimum volume of water that will allow immersion of the metal sample in the determination of the specific heat of a metal?
Determine the concentration of AlBr3 in the original undiluted solution? A 16 mL sample of a solution of AlBr3 was diluted with the water to 58 mL. A 20mL sample of the dilute soluti
Calculate the concentration of arsenic in the ppm? Ingestion of arsenic in the small amounts leads to degeneration of the kidneys and the liver and eventual death.
Determine the molar solubility and the Ksp, for this metal hydroxide. A saturated solution of the metal hydroxide, M(OH), has a pH of 9.45. M(OH)2(s) ®¬M2++ 2OH1-(aq)
The pressure of the chloroform is 728mmHg. Calculate the molar mass of chloroform gas if a sample weighing the 0.389 g is collected in a flask with a volume of102cm3 a 97 degrees C.
Determine the numbers of mg of silver chloride would be precipitated if the 25 mg of silver (Ag) were reacted with an excess of chlorate ions (Cl)?
Determine the numbers of mg of salt do we have if u have 0.251 of a 45 mg/l salt solution. Determine the density of the claying/ml. A ball of clay has a mass of 2.65 lbs. and a volume of 0.5025 quarts
Determine the formula mass of the unknown acid by using the manual titration volume of NaOH used to reach the end point ( pH= pKa) and compare it with the formula mass measured form the pH
How can determine the formula mass of an unknown acid by using the manual titration volume of NaOH with which it was titrated, used to reach the endpoint?
Determine the volume of oxygen gas formed and collected at a pressure of 741 torr and a temperature of 18 degrees Celsius when15.00 g of potassium chloride is formed when the solid potassium chlorat
Just set up the calculations, but remember to include all information that is necessary to do the integrals and/or other calculations. Take as a trial function for the ground state of the hydrogen a
A piece of copper also weighing 10.0 g (c = 0.385 J/g-K) is chilled in an ice bath to 0oC. A piece of gold weighing 10.0 g (c = 0.129 J/g-K) is heated to100.0oC. Both pieces of metal are placed in a b
Determine the numbers of grams of sodium are needed to completely react with the 1175 mL of chlorine gas at 945 mmHg & 21degrees Celsius? Chlorine gas reacts explosively with the sodium metal t
A sample of 0.4831 g of the compound was analyzed for nitrogen by the Dumas method. At STP, 27.6 mL of dry N2 was obtained. An organic compound contains C, H, N, and O.
According to the delocalized molecular orbital theory of metals, in what sense do we say that the entire piece of metal is a large molecule? Explain why are nonmetallic network solids usually quite
Determine the numbers of grams of solid NaCl must be added to 25.0 mL of 0.366 M AgNO3 solution to completely precipitate the silver? Silver chloride is virtually insoluble in the water so that
At the end of the experiment a precipitate with a mass of 0.928g is obtained. Determine the % P2O5 in the plant food. An experiment was started, by mistake, with 2.37g of another type of
Diammonium phosphate (DAP) fertilizer is a dry material that is being used extensively for bulk blending and for direct application where soils do not need potassium (K) or where potassium is broadc
Write down the base hydrolysis equilibrium equations for the HSeO3- ions and SeO3^2-(aq) and determine the equilibrium constant values for each equilibrium.
10B with an isotope mass of10.013 amu and 11B with an isotope mass of 11.009amu. Boron has an atomic mass of 10.810 amu. It consists of only 2 isotopes.