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Predict the geometry of the following species using the VSEPR model. electron domain and molecular geometry.
a. PCl3b. CHCl3c. SiH4d. TeCl4
Methanol can be produced by the reaction shown below with the following thermodynamic data given at 25 degree Celcius.
What minimum voltage is required to electrolyze anhydrous HF? Hint: the H-F bond is so polar that liquid HF is essentially composed of H+ and F- ions.
In the welding shop of the XYZ Manufacturing plant you have a cylinder with a volume of 548L of a compressed gas, and the pressure gauge shows 238 psig at the room temperature 25 C.
The temperature increased by 10.08 oC. Use these data, plus the information given below for CO2 and H2O, to estimate the standard enthalpy of formation, of H, at 25 oC for this compound of H values at 25 oC for CO2(g) and H2O(l) are 394 kJ mol 1 a..
a sample of sodium hydrogencarbonate, NaHCO3 is contaminated with 5-10% NaCl. How should i carry out an experiment to determine the percentage purity of NaHCO3 ?
The nuclide 18f decays by both electron capture and beta plus decay. Find the difference in the energy released by these two processes. The atomic masses are 18F = 18.000950 and 18O= 17.9991598.
Nitrobenzene (C6H6NO2) is used in small quantities as a flavoring agent or in perfumes, but can be toxic in large amounts. It is produced by reaction of benzene (C6H6) with nitric acid
At a certian temperature and pressure, chlorine molecules hav an average velocity of 0.0610m/s. What is the average velocity of sulfur dioxide molecules under the same conditions.
A 12.0 gas cylinder has been filled with 5.40 moles of gas. You measure the pressure to be 5.00 atm. What is the temperature inside the tank? Express your answer numerically in degrees Celsius.
What is the rate of the above reaction? What is the closest numerical value of K for the above reaction? What are the units for the rate constant for the reaction?
Permenant sterility in women occurs at 300.0 rem of exposure. The source radiates with 3540 rem at 500.0 cm.
A 0.100 M sample of NiSO4 gave an absorbance of 0.60 at 600 nm in a 1 cm cuvette. What is the nickel concentration of a solution giving an absorbance of 0.20 in the same cuvetter at the ame wavelength
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