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Identify the empirical formula of mesitylene. This is a combustion reaction. All the carbon in the CO2 formed comes from the sample. Mesitylene is a liquid hydrocarbon.
A piece of copper also weighing10.0g(c=0.385 J/g-K) is chilled in an ice bath to 0 degrees Celsius. A piece of gold weighing 10.0g(c=0.129 J/g-K) is heated to100.0 degrees Celsius. Both pieces of me
Explain why does Helium have more spectral lines than the Hydrogen? Explain would you accept the spectrum of the He+ ion to be a complex as the spectrum of He?
Determine the volume change upon mixing sufficient ethanol with the 2.00 mol of water to give this concentration. The partial molar volumes of ethanol and water in a solution with x(H20) = 0.60 at 2
Execute a degree-of-freedom analysis to illustrate that enough information is available to determine the required condenser outlet temperature in the degree C and cooling rate in (kW).
You will be using a Ready Gel Pre-Cast, Tris-HCl Polydactyl amide gels (10% or 15%) Discuss how are these particular types of gels produced?
Discuss how much grams of barium phosphate will precipitate when 0.629g of sodium phosphate, molar mass of 380.2 and0.5279g of barium chloride, molar mass of 601.96 is mixed with the water to a vol
Determine the balanced molecular equation for the reaction? The Mn(2+), K+ and Na+ all react to form 3 different sulfate salts. Explain will the free electrons appear in the equation as reactants or p
If 1.598 of TiO2 produces 1.438 g of Ti(x)O(y), determine the empirical formula of the new oxide? Titanium (IV) oxide (TiO2) is heated in the hydrogen gas to give a new titanium oxide, Ti(x)O(y) an
Explain what could you notice from an image of the carbon atoms in the graphite made by using a special electron microscope?
Determine the numbers of grams of each reactant remain? In the reaction of potassium chlorate with sulphuric acid and iron, the products are: iron (III) chlorate, potassium chloride, water, and pota
Explain how much energy is needed to raise 1 gram of water (as ice) from -15 degree Celsius to 110 degree Celsius (as steam)? Remember to account for the latent heat needed for the ph
Calculate the binding energy of the electron in the kJ/ mol? KE =(1/2)(mv2); 1 electron volt eV = 1.602 *10-19J] An X-ray photon of wavelength 0.932nm strikes a surface. The emitted electron has a kin
Explain the final temperature when both metals are placed in the water at 20 degree Celsius? A piece of gold weighing 10.0g(c=0.129 J/g-K) is heated to100.0 degrees Celsius.
Determine the volume of methanol formed in the answer (D) above. The density of methanol is 0.7914 g/mL. A small car of of 4- cylinder engine averages 24 miles per gallon in typical city driving.
Determine the numbers of moles of H2O form when the butane is burned totally? Determine the numbers of total molecules of gas form when all the butane burns?
Determine the fundamental frequency (corresponding to the transition among the ground and the first exited states, incm-1), and zero point energy (in J). The spring constant of 79Br79Br is 240Jm-
Determine the vibrational period and the spring constant. In the infrared spectrum of 1H79Br, there is an intense line at 2630 cm-1, which is assigned to the transition among the ground and the f
Describe the aromaticity of the difluorofulvene by inductive effect, hackle's rule? Also, discuss why does anyone should care about making difluoromethylene compound?
Buffer is prepared by mixing the 184 ml of 0.500 L of 0.400 M sodium acetate and 0.442 hydrochloric acid. (Ka=1.8 x 10-5) Determine the balanced reaction that describes the buffer that was formed.
Using the standard enthalpies of formation, determine the quantity of heat formed when the 2.7 g of butane is totally combusted in the air under the standard conditions. Many cigarette ligh
Determine the half reaction for the deposition of the silver where the molar mass of Ag is 107.9 A constant the electric current deposits 0.365 g of the silver metal in 12960 seconds from a solutio
Determine the frequency associated with the light of wavelength 656 nm. (This corresponds to one of the wavelengths of light which is emitted by the hydrogen atom.)
If 25.00 mL of 0.385 M plumbous nitrate solution and the 20.00 mL of 0.967 M ammonium iodide are combined, determine the numbers of grams of lead (II)iodide could be produced?
Determine the volume of vinegar that would be required for the neutralization of 25mL of the standardized NaOH solution. Suppose the vinegar has a density of 1g/mL and a percent acetic acid of 5% b