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Explain which compound will have the larger Rf value on a SiO2 TLC plate using 10% ethyl acetate/hexane as eluent 3-decanone or 3-decanol, toluene or benzoic acid as well as cyclooctane or cyclooctanone? Why?
Calculate delta Grxn(in KJ) for the following reaction at 298K: 2H2(g)+CO(g)=CH3OH(g) given that delta H=-90.7 Kj and delta S=-221.5 J/K for this process.
Find the amount of heat involved when 300.4 g of propane is burned with an excess of oxygen. C3H8(g) + 3 O2(g) ? 3 CO2(g) + 4 H2O(l) -->?H = -2219 kJ
consider a sample of a hydrocarbon a compound consisting of onlycarbon and hydrogen at 0.959 atm and 298k. upon
what would the major product be of the reaction of 1 mole of 34-dibromoheptane with 1 mole of koh in ethylene glycol?
the density of plutonium metal is 19.84 g/cm3 , and the density of plutonium (IV) oxide is 11.46 g/cm3. over a period of 7-10 years, a 2.5-kg sample of plutonium metal stored at Los Alamos National Laboratory in New Mexico was converted to plutoni..
Calculate the molarity of of each ion present in the solution. Please walk me through the steps I'm trying to help my daughter with her chem. homework and I don't know any chem.
A 1.0 ounce piece of chocolate contains 15mg of caffeine, and a 6.0 ounce cup of regular coffee contains 105mg of caffeine. How much chocolate would you have to consume to get as much caffeine as you would from 2.0 cups of coffee.
A compound contains only carbon, hydrogen, nitrogen and oxygen. Combustion of 0.314 g of the compound produced 0.426 g CO2, and 0.0620 g H2O.
The molecules of a certain gas sample at 313 K have a root-mean-square (rms) speed of 297 m/s. Calculate the most probable speed and the mass of a molecule.
A 35.0- sample of 0.150 acetic acid is titrated with 0.150 solution. Calculate the after the following volumes of base have been added. 35 ml.
How would you distinguish between the following compounds? State what you would do and what you would see. (lab associated witht his question used Jones, Lucas, Iodoform tests)
1. Assume that, for a laboratory assignment, you need 15 mL of 2.5M potassium hydroxide (KOH). All you can find, however, is a bottle of concentrated potassium hydroxide with a strength of 16M. Clearly explain, using calculations as necessar..
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