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While 100 mL of an aqueous solution containing 1g of caffeine is extracted with 10mL of chloroform at room temp, .5g of caffeine is transferred to the chloroform layer. Compute the distribution coefficient of caffeine between chloroform and water at room temp.
Oxalic acid is an organic acid with the formula H2C2O4. THerefore, the polyatomic anion derived from this acid will have what formula and what name. Explain
find the theoretical percent yield amp percent error of the reaction.zirconium oxalate k2zrc2o43h2c2o4middoth2o was
Lysozyme is an enzyme that cleaves bacterial cell walls. A sample of the enzyme has a molar mass of approximately 14,000. g/mol. If a quantity of 0.100g of the enzyme is dissolved in 150g of water at 25C, calculate the a)vapor pressure, b)freezing..
Complete combustion of a 3.54-g sample of procaine with excess O2 formed 8.58 g CO2 and 2.70 g H2O . Another sample of mass 2.35 g was found to contain 0.279 g of N . The molar mass of procaine was found to be 236.
A weather balloon at launch is partially inflated with 3.00 times 10 power 4l of helium at STP. what will be the volume of helium at an altitude of 7km, where the pressure is 0.41atm and the temperature is -20 degrees Celsius?
Assuming that you could express and purify both components, describe TWO different experimental methodologies (including SALIENT details) that you would conduct to determine whether the two proteins interact in vivo in a mammalian cell line?
Without consulting the table of acid-dissociation constants, match the following acids to the given Kal values. Drag the appropriate items to their respective bins.
What final temp. would be required to increase the pressure to 1 atm, the volume being held constant?
Write the electron configurations for P and Cl using both the spdf notation and orbital box diagrams. Describe the relationship between each atom's electron configuration and its position in the periodic table.
Why does benzyl alcohol, a primary alcohol, react rapidly in the presence of HCl to form benzyl chloride? If it's primary, shouldn't the reaction be slow?
How much heat is required to convert 83 g of nitrogen gas to NO2 at constant temperature and pressure in the presence of excess oxygen
An unknown element crystallizes in a body-center cubic crystal structure. The atomic radius of the substance is 2.532 Å and its density is 1.208 g/cm3.
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