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1. Which of the following compounds give a positive bromine test (disappearance of red)? a. pentane b. 1-petene c. hexane d. 2-hexene
2. A student prepares cyclohexene from cyclohexanol, but forgets to do the extractions. As a result the product contains some cyclohexanol. What peaks would you expect to see in the IR spectrum of this impure product?
3. A centrifuge tube contains 4-methylcyclohene and an aqueous sodium chloride solution. Why are two distinct layers formed? Which layer contains 4-methylcyclohexene, why?
4. In this experiment, phosphoric acid was used as a catalyst. What is the purpose of a catalyst?
Explain in detail the observed absorption maxima (from the UV-vis spectrum) for the following compounds:
What molecule does a most probable speed of 393 m/s at 25*C? Also calculate the mean speead and root mean square speed.
the density of titanium is 7.51 g/cm^3. What is the volume (in cubic inches) of 3.5 lb of titanium?
A growth factor for cells was identified from extracts of rat brain. Preliminary characterization was done on this activity using several methods.
would the mass of the precipate collected be more, unchanged, or less if performing the reaction with reactants
If 60.0g of Cu metal at 85C were added to 60.0g ethanol at 10C in a calorimeter of heat capacity 30.0 J/K what would the final temperature be assuming no heat losses? cp for Cu= 0.380 J/K/g and Cp for ethanol = 60.0 J/K/mol
Suppose that 155g of ethanol at 21 degrees Celcius is mixed with 240g of ethanol at 88 degrees Celcius at constant atmospheric pressure in a thermally insulated vessel. What is the change in S of the system for the process? The specific heat capac..
what is the molarity of an NaOH solution if 25 mL of this solution reacts exactly with 22.3 mL of .253 molar sulfuric acid?
What is the maximum number of liters of Fe2O3(s) that can be made from 11.53 L of O2(g) and 16.07 L of FeS(s) at STP?
what would be the chemical equation to this problem? In an investigation of the reaction between copper(II) ions, Cu2+, and hydrazine, N2H4, in alkaline conditions the following observations were made: 25 mL of a solution containing 25 g/L CuSO4.5..
It takes 54.0 J to raise the temperature of an 10.3g piece of unknown metal from 13.0C to 25.0 C. What is the specific heat for the metal?
identify organic compounds in medications. determine the structure of one active component and identify three functional groups on each molecule.
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