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why is it essential to evaporate methanol quickly (within 10-15 minutes) if you are isolating the aspirin?
How does the entropy of water molecules at the air-water interface differ from molecules in the bulk, and why is it different?
What is the theoretical yield of hydrazine, in grams, prepared from the reaction of 150.0mL of 1.01 M NH3 (aq) with 50.0 mL of 1.25 M NaOCl (aq)?
Which of the following wave functions are eigen functions of the operator d^2/dx^2? If they are eigen functions what is the eigen value? b) sin (2?x/a)
When mercury is at temperatures below its freezing point it has a simple cubic unit cell. How many atoms of Hg are present in each unit cell?
Explain why it would have been inadvisable to supply hydrogen and sodium in elemental form and why it is not neccessary.
For methanol, CH3OH, the molar enthalpy of fusion is 3.16 kJ/mol at the melting point T=175.2 K. Calculate the freezing point depression constant,k, of methanol
Refer to the Galvanic cel below (the contents of each half-cell are written beneath each compartment): 0.10 M MnO4- 0.40 M Cr3+
For the table below, write which orbital goes with the quantum numbers. Don't worry about x, y, z subscripts. If the quantum numbers are not allowed, write "not allowed."
what happens when acetate ion reacts with mercuric chcloride? explain with reactions?
at 986°C is 0.63. A rigid cylinder at that temperature contains 1.2 atm of carbon monoxide, 0.20 atm of water vapor, 0.30 atm of carbon dioxide, and 0.27 atm of hydrogen. Is the system at equilibrium?
Assume you have a solution containing two volatile liquids. Given the data for liquid A: MM = 56.89 g/mole, partial pressure = 0.903 atm and for liquid B: MM = 14.52 g/mole, partial pressure = 0.995 atm
The products of the fastest inactivation process are as explain the mechanism is accountable for the making of the products.
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