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When amino acids are used as carbon and nitrogen sources, can D-isomers be used instead of L-isomers? Why?
find the enthalpy change for the chemical reaction below pcl5g ----gt pcl3 g cl2 from the following equations p4 s
a seed crystal of diameter d mm is placed in a solution of dissolved salt and new crystals are observed to nucleate
a laboratory animal exercised on a treadmill that was connected to a weight with a mass of 256 g through a pulley. the
after swimming in a pool or lake the air feels cool because heat is required to evaporate the water from our skin. how
Butyric acid (a monoprotic acid) is responsible for the foul smell of rancid butter. the pKa of butyric acid is 4.84. calculate the pH of a 0.05M sloution of sodium butyrate
Considering the structure of ferrocene and acetylferrocen, identify what interparticle/ intermolecular forces are present between these ferrocenes and the mobile phase. How do they help explain the order in which the ferrocenes come off the alumna..
sodium azide a compound containing only sodium na and nitrogen n is used as a propellant for inflating airbags in some
Calculate the heat released when 2.82 L of Cl2(g) with a density of 1.88 g/L reacts with an excess of sodium metal at 25°C and 1 atm to form sodium chloride.in kJ
if the open-tube manometer in the figure below contains a nonvolatile silicone oil density 1.30 gcm3 instead of
Ethyl butyrate was refluxed with 3mL butyryl chloride and 6mL ethanol for 1 hour. It was then recovered using 5mL ether and 5mL distilled water. Show what products formed at each step of the reaction and name the final compound(s).
Explain how many grams of copper are deposited in the second cell. Define what is the current flowing in amperes
Problem- Calculate the energy of a benzene (C6H6) molecule in the (nx,ny,nz) = (5,7,12) translational energy level in a 1mL container (hint: 1mL = 1 cm^3, so you know L in cm). Provide complete computation
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