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If a pure R isomer has a specific rotation of -139 degrees, and a sample contains 85% of the R isomer and 15% of its enantiomer, what is the observed specific rotation of the mixture?
Cyclohexanol produces cyclohexene when heated to 70C in the presence of a sulfuric acid catalyst. Write the equation of the reaction.
Einstein stated that the incident radiation had to have a minimum energy to dislodge the electron from the metal surface. This energy is called the work function.
How much faster do ammonia (NH3) molecules effuse than carbon monoxide (CO) molecules? Enter the ratio of the rates of effusion.
How many grams of TiCl4 are needed for complete reaction with 155L if H2 at 430 degrees C and 780mmHg pressure? How any liters of HCl gas at STP will result from the reaction described in part (a)?
The van't Hoff factor for KCl is i = 1.85. What is the boiling point of a 0.90 m solution of KCl in water. For water, Kb = 0.51 C*kg/mol
Codeine, C18H21NO3, a commonly prescribed painkiller, is a weak base. A saturated aqueous solution contains 1.00 g codeine in 120 mL of solution and has a pH = 9.8. What is the Kb of codeine?
After a strenuous exercise session, someone experiences sever cramps in the ghighs and pain in the biceps. what chemical process occurs in the muscle cells to cause this discomfort and what chemical reactions have possibly taken place in the the b..
This solution was back-titrated with a .0440 M Ga3+ solution until all the EDTA reacted requiring 14.0 ml of the Ga3+ solution. What was the original concentration of the V3+ solution
What is the pH of a saturated solution of Ba(OH)2 at 25oC? For Ba(OH)2, Ksp=5.0x10-3.
Does fluorene or 9-fluorenone move faster down the column when petroleum ether is used as the eluant. Why
How much heat in Joules was lost by the water. How much heat would be lost by the water if 1 mole of KCl had dissolved. c) What is (Delta Heat reaction) in kL/mole for this process, which can be written as KCl (s) --> KCL (aq)
The gas-phase dipole moment of the hydroxyl radical
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