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What are the proper names for each of the pieces of glassware commonly used in distillation. In distillation, how is a column different than a condenser? How is a fractionating column different than a plain column
The figure shows (R,R)-1-ethyl-2-methylcyclohexane in one of its chair conformations. Draw the same compound in its other chair conformation. Follow this procedure.
Lactic acid is a monoprotic acid with a Ka of 1.4 x 10-4. What is the percent ionization of a 0.100 M lactic acid solution in the absence and presence of 0.0500 M sodium lactate
A spherical water tank of radius R=4m is emptied through a small circular hole of radius r=.02m at the bottom. The top of the tank is open to the atmosphere. The instaneous water level h in the tank can be determined from the solution of the follo..
a buffer is prepared by mixing .200 mole of formic acid with .300 mole of sodium formate in a volume of 200 ml what is the initial ph.
Which compound has the smallest molar mass?
what number of grams of NaHCO3 in a .210 g piece of antacid would generate 38.0 moles of CO2, if the CO2 is measured at 20 degrees C and 1.00 atm.
What is the pH change of a 0.200M solution of citric acid (pKa=4.77) if citrate is added to a concentration of 0.175M with no change in volume?
How many grams of sucrose (C12H22O11) must be added to 509 g of water to give a solution with a vapor pressure 0.723 mmHg less than that of pure water at 20 degrees C.
How much boiling water would you need to raise the bath to body temperature (about 37c ). Assume that no heat is transferred to the surrounding environment.
Why is there a difference between the conduction of glacial acetic acid (CH3COOH) and 0.1 M Acetic acid (CH3COOH)? Please explain in detail.
what volume of ethylene glycol, a nonelectrolyte, must be added to 15.0 Liters of water to produce an antifreeze solution with a freezing point of - 30 degrees celcius? what is the boiling point of the solution?
the density of pure silver is 10.5 gcm3 at 20degc. if 6.17 g of pure silver pellets is added to a graduated cylinder
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