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What measuring device would you use to measure the volume under each of the conditions described below? In some cases, there may be more than one answer to the question.
a) 5 mL of a solvent needed for a crystallizationb) 0.76 mL of a liquid needed for a reaction.c) 1 mL of a solvent needed for an extraction.
suppose that a particular reaction evolves heat of 228 kj and that 40 kj of pv work is gained by the system. determine
write three dimensional structures of meso-stilbene dibromide and one enantiomer of dl-stilbene dibromide
An aqueous solution containing 0.003 M NaCl and 0.005 M CaCl2 is mixed with the polysaccharide alginate to create a high-viscosity liquid that is a component of a wound dressing
Acid HA has a pKa = 20; acid HB has pKa = 10 Will an acid-base reaction with an equilibrium lying to the right take place if Na+A- is added to HB
If a solution containing 60.998 g of mercury(II) perchlorate is allowed to react completely with a solution containing 10.872 g of sodium sulfide, how many grams of solid precipitate will be formed?
A 125-g piece of metal is heated to 288 oC and dropped into 85.0 g of water at 26 oC. If the final temperature of the water and metal is 58.0 oC, what is the specific heat of the metal (J/goC)
Calculate the intermolecular collision frequency and the mean free path in a sample of helium gas with a volume of 5.0 L at 27 degrees Celsius and 3.0 atm.
When the gas is not flowing, the pressure is the same everywhere in the pipe. How high above the bottom of the manometer would the mercury be in the arm connected to the pipe?
Calculate the final temperature when a 25.6 gram sample of ice at 0oC is placed into a styrofoam cup containing 115 grams of water at 75.0 oC. Assume that there is no loss or gain of heat from the surroundings.
During the isomerization of trans-1,2-dibenzoylethylene C16H12O2 using 95% Ethanol C2H6O , and UV light irradiation. What is the overall equation for this reaction. What is the product.
Suppose that the microwave radiation has a wavelength of 12.4cm . How many photons are required to heat 295mL of coffee from 25.0 C to 62.0 C ? Assume that the coffee has the same density, 0.997 g/mL , and specific heat capacity, 4.184 J(gxK) , as..
Describe how Concanavalin A Sepaharose could be used to isolate Protein C from the mixture. Specify how any elution steps might be carried out. Be sure to cite the reference you used to determine how "ConA Sepharose" works.
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