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A solution of 2-methyl-1-butanol has a specific rotation of +1.151. What is the ratio of R:S in the sample mixture? [α] =+/- 5.756
1.What is the effect of the following on the observed melting point of the compound: a) insoluble purity, such as charcoal; b) incomplete drying of the sample; c) less recrystallization solvent was used than it was needed?
Calculate the mass of KI in grams required to prepare 4.00 102 mL of a 2.80 M solution.
Question- How many liters of the antifreeze ethylene glycol [CH2(OH)CH2(OH)] would you add to a car radiator containing 6.50 L of water if the coldest winter temperature in your area is -20ºC? Calculate the boiling point of this water-ethylene gly..
A swimming pool is 27.31 yards long and 37.55 feet wide. The pool is filled with water from a hose that has a flow rate of 2.837 gallons/second. How many minutes will it take to fill the pool to a depth of 5.004 feet
When ethyl benzoate is heated in methanol containing a small amount of HCl, methyl benzoate is formed. Draw structural formulas for the first two intermediates in this reaction. Indicate the order of formation of the intermediates by drawing a 'Rea..
What is the product of 1,1-diphenylethanol + Montmorillonite K10 Clay undergoing microwave radiation? What is the mechanism for it?
Calcium oxalate dehydrate may be used as a primary standard in standardizing NaOH solutions. If the CaC2O4"2H2O were pure, by what percent would the mass of a 1.566 gram sample change as it was heated in a thermogravimetric analysis from 100oC to 300..
What is the maximum number of distinct spectral lines (lines of different wavelengths) that can be observed from this system? Calculate the wavelength of each of these lines and sketch the observed spectrum
Identify each of the following as a homogeneous or heterogeneous equilibrium: a)CO(g)+H2(g) C(s)+H2O(g). b)NH4Cl(s) NH3(g)+HCl(g). c)CS2(g)+4H2(g) CH4(g)+2H2S(g). d)Br2(g)+Cl2(g) 2BrCl(g).
the IUPAC name for the aniline C6H5NH2 with both CH3 and CH2CH2CH3 attached to the nitrogen molecule?
the forensic technician at a crime scene has just prepared a luminol stock solution by adding 11.0 of luminol to creating a solution with a total volume of 75.0 . What is the molarity of the stock solution of luminol?
A gold nucleus is located at the origin of coordiantes and an electron is brought to a position 2 angstrom from the origin. calculate the force between the gold nucleus and the electron
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