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The distillation technique most suited for separating glycerol from spent-lye in the soap industry is: (1) Fractional distillation (2) Steam distillation (3) Distillation under reduced pressure (4) Simple distillation
Explain each process please.
calculate the density of iron fe given that the melatllic radius isrfe 1.24 angstrom and that fe displays a body
what are the differences in the type of inhibition caused by heat, acid or base, and heavy metal ions on enzyme activity?
Determine the molar mass of carbon dioxide by measuring the mass of an Erlenmeyer flask full of the gas. The following calculations are intended to familiarize you with the general procedure:
How many MOLES of phosphorus triiodide are present in 7.73E+22 molecules of this compound
An aqueous solution containing 35.5 g of an unknown molecular (nonelectrolyte) compound in 156.3 g of water was found to have a freezing point of -1.4C. calculate molar mass of unknown compound
Suppose the concentration of glucose inside a cell is 0.1 mM and the cell is suspended in a glucose solution of 0.01 mM.Part AWhat would be the free energy change involved in transporting 10-6 mole of glucose from the medium into the cell? Assume T= ..
The work-up procedure calls for washing the crude 2-chloro-2-methylbutane with cold sodium bicarbonate solution. a. What purpose does this wash serve?
What would be the wavelength of a photon that would be able to break the Cl-Cl bond in Cl2. The bond energy in Cl2 is 243 kJ/mol.
Problem- Complete and balance the following redox equation. What is the coefficient of Fe2+ when the equation is balanced using the set of smallest whole-number coefficients
125 mL of .45M of oxalic acid is added to 200 mL of 0.55 M of potassium permanganate acidified with a few drops of concentrated sulfuric acid. Determine the mass of the gaseous compound produced in the reaction.
when a mixture at 273 K is heated to 473 K, how many different chemical changes occur? How many physical changes occur?
calculate the energy of attraction in ev between a cation with a valence of 2 and an anion with a valence of -1 the
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