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1. Write a mechanism for the haloform reaction.
2. A sample of pure R enatiomer of 3-phenyl-2nutanone racemizes when catalytic amonts of acid are present.How would you account for the observation.
the rate constant for a reaction is 7.7 x 10^-3 s^-1 at 25 C, and the activation energy is 33.6 kj/mol. what is k at 75C
A gas occupies 22.4 L at STP and 14.5 L at 100°C and 2.00 atm pressure. How many moles of gas did the system gain or lose?
a solution is prepared by dissolving 2.33g of c60 in 100.0g of toluene. given that the vapor pressure of pure toluene
Rank the following aqueous solutions in order of increasing boiling point: 0.10 mNa2SO4, 0.10 m SrSO4, 0.25 m sucrose, 0.20 m glucose, 0.15 m NaCl
What fragmentation would give rise to the peak at m/z 45 in the Mass Spectrum. Loss of hydroxyl group.
Sodium sulfate is slowly added to a solution containing 0.0500 M Ca2 (aq) and 0.0240 M Ag (aq). What will be the concentration of Ca2 (aq) when Ag2SO4(s) begins to precipitate. What percentage of the Ca2 (aq) can be separated from the Ag (aq) by s..
If 28 mL of NaCl reacts completely with 46 mL of 0.44 AgNO3, what is the molarity of the NaCl solution? The reaction is: AgNO3 + NaCl = AgCl + NaNO3
microwave ovens use microwave radiation to heat food. the energy of the microwaves is absorbed by water molecules in
The standard free energy change is -33.41 kJ/mol for the formation (delta G formation) of AgNO3(s) from elements at 25 degrees celsius. What is the equilibrium constant for the reaction? (R = 8.314 J/K mol)
Cobalt-60, which undergoes beta decay, has a half life of 5.26 years.
calculate the molar mass of an unknown gas if 0.192 grams of the gas occupies a volume of 293 ml at 754.7 mm Hg and 22.5 degrees celsius.
What volume of H2 gas (in L ), measured at 742 mmHg and 84C, is required to synthesize 25.8g of CH3OH ?
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