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Depict a diagram of a TLC plate. On the diagram locate as well as define each of the following terms: origin, mobile phase, component spot, development, stationary phase, solvent front, Rf value and visualization of spots.
Write a flow chart to show how you could separate a mixture ofthe following compounds by using acid-base extraction. all three compounds are crystalline solids and soluble in common organic solvents.
When a 9.15-g sample of solid ammonium nitrate dissolves in 58.4 g of water in a coffee-cup calorimeter (see above figure) the temperature falls from 21.00 oC to 10.88 oC. Calculate H in kJ/mol NH4NO3 for the solution process. NH4NO3(s) NH4+(aq) +..
Gas boiling matographic analysis of the product showed that the compound was pure, and a calibration of the thermometer indicated that it was accurate. What procedural error might the student have made in setting up the distillation apparatus
if a closed vessel is charged with 88000.0 pa of nitric oxide and allowed to react with excess liquid bromine what is
Which of the following gases deviate most from behavior of ideal gas: CO2, O2, He, N2, CH4
steam from a boiling teapot 100 degc hits a persons hand and causes a burn. assuming 1 g of water vapor condenses to
Will changing the temperature of the surroundings favor spontaneity, nonspontaneity, or have little effect? deltaH = -30.4 kJ/mol
For the reactions of the alkyl halides with sodium iodide in acetone, does the type of halide affect the rate of the reaction? For the reactions of the alkyl halides with 1% ethanolic silver nitrate, does the type of halide affect the rate of the ..
A substance with the empirical formula C2HCL (the 2 is a subscript) has the molar mass of 181.44 g/mol. Find the molecular formula of this compound.
Provide a structure for the following compound: molecular mass 101; IR: 3397, 3200, 1655, 1622 cm-1; 13C NMR: ? 27.5, ? 38.0 (weak)
How much energy in kJ must be absorbed to heat up a volume of ocean water 2 m high by 20 km wide by 30 km deep by 3°C.
The solubility product constant (Ksp) for the dissolution of CaF2 as represented by the chemical equation is 3.4 x 10-11. CaF2 (s) Ca2+ (aq) + 2 F- (aq) Calculate the molarity (M) of Ca2+ in a saturated solution of CaF2
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