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A compound containing sulfur, nitrogen, and hydrogen has 86.6% sulfur, 12.6% nitrogen, and 0.91% hydrogen. A 1.263-g sample of this compound was dissolved in 25.00 g of bromoform, producing a solution that freezes at 4.4°C. The solvent has a freezing point of 7.8°C. Kf for bromoform is 14.4°C/molal. What is the molecular formula for the compound?
1. Draw the mechanism for the methanolysis of 1-bromo-1-methylcylohexane 2. Draw a free energy diagram for the above reaction
Next calculate molar internal energy and molar heat capacity assuming vibrational energy levels are not significantly populated at 298 K and do not contribute to molar heat capacity and molar internal energy. Calculate percent error for each molar..
Can relative amounts of the components of a mixture vary? Can the relative amounts of the components of a compound vary
A student is given a soluble sodium salt containing one of eight possible anions (negative ions): acetate, chloride, bromide, iodide, sulfide, sulfate, or phosphate. the student adds some BaCl2 solution to the salt solution.
Aspirin c9h804 is produced from salicyclic acid,c7h6o3 and acetic anhydride,c4h6o3.what quantity of pure c7h6o3 would be needed to manufacture 1500 metric tonnes of aspirin..th yield for this process is 91%+
Gold has a face-centered cubic arrangement with a unit cell edge length of 4.08 \AA. How many moles of gold fit in a sheet with a length of 51.6 nm, a width of 24.3 nm
a graduated cylinder contains 10.0ml of water. if the volume of a single water molecule is 2.99 x 10e-23 cm e3 how many
Find the flux, J, of oil droplets through the water to the top surface. The sink is 18 cm deep, and the concentration of oil on the plate is 0.1 mol/cm3. Assume that there is no oil at the top of the sink when you start. The diffusion coefficient ..
Calculate the amount of work done, in joules, when 2.5 mole of H2O vaporizes at 1.0 atm and 25°C. Assume the volume of liquid H2O is negligible compared to that of vapor. [1 L·atm = 101.3 J]
A sample of gas with a volume of 750 mL exerts a pressure of 98 kPa at 30 ?C.What pressure will the sample exert when it is compressed to 250 mL and cooled to -25 ?C?
CO(g) + 2H2(g) = CH3OH(g) , what is the equilibrium constant? , where CH3OH = 0.0412 atm, H2 = 0.274 atm, CO = 0.914 atm.
a cylindrical glass tube 15.0 cm in length is filled with ethanol. the mass of ethanol needed to fill the tube is found
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