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Menthol is a crystalline substance with a peppermint taste and odor. When 0.829 g of menthol is dissolved in 25.0 g of cyclohexane, the freezing point of the solution is lowered by 4.42 °C. The freezing point and Kf constant for cyclohexane can be found here. Calculate the molar mass of menthol.
How many stereoisomers are possible for 3-methyl-1,2-cyclopentanediol. (b) Name the stereoisomers formed by oxidation of (R)-3-methylcyclopentene with osmium tetroxide.
What are the formal charges on the sulfur (\rm S), carbon (\rm C), and nitrogen (\rm N) atoms, respectively, in the resonance structure that contributes most to the stability of the thiocyanate ion, \rm SCN^
What is the effect on Kc when the temperature of an exothermic reaction is lowered. according to le chatelier's principle how is equilibrium in part a reached
What will be the value of E cell and E0 cell when the Cu/Zn battery has "run down" I.e., reached equillibrium? Also will the concentrations of Zn2+ and Cu2+ be large or small when the battery has "run down"? Does this make sense?
If 150 ml of Al(OH)3 of unknown concentration with a methyl red indicator present is titrated with [0.535 M] HCl, the yellow solution turns red after 32.8 ml of the HCl is added. What is the molarity of the Al(OH)3 solution
What is the wavelength (in nm) of a photon emitted during transition
One mole of Nitrogen at 25 C and 1 bar is expanded reversibly and isothermally to a pressure of 0.132 bar. (a) How much work w is done on the gas? (b) How much work is done on the gas if it is expanded against constant pressure of 0.132 bar
Explain the data related to odour in terms of types of bonds. Do you think that a substance can be relatively volatile and not have an odour? Give an example.
When backpacking in the wilderness, hikers often boil water to sterilize it for drinking. Suppose that you are planning a backpacking trip and will need to boil 40 of water for your group
The oxidation of gold metal by aqua regia (i.e., royal water) results in the production of nitrogen dioxide and gold(III) ion, in the primary step. Aqua regia is a dangerous mixture of 1 part nitric acid and 3-9 parts hydrochloric acid.
For the given reaction, 2 HCl (aq) + Ba(OH)2 (aq) BaCl2 (aq) + 2 H2O (l) 73.0 grams of HCl are allowed to react with 342 grams of BaCl2.
Calculate the amount of heat energy in each of the following: A) calories removed to condense 125g of steam at 100 degrees celsius and to cool the liquid to 15 degrees celsius
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