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Find out the molar concentration of ethanol (C2H6O) in a wine that is 14% ethanol by mass. IF the density of this wine is 0.93 g/cm3.
1- explain all aspects of insulin regulation of metabolic pathways in the body.may cover regulation carbohydrate
My goal is prepare a 100.00 mL of a buffer with a pH = 3.500 and a total common ion concentration of 0.100 M. I have available to me, bottle of 1.00 M of acetic acid, formic acid, ammonia, hydrochloric acid, sodium hydroxide, sodium formate, sodiu..
A 1.0 lambda L sample injected into a G.C. resulted in broad and tailing peaks in the chromatogram. Assuming that the column was appropriate for the sample, what two simple modifications could be made to improve peak width and shape
what is the minimum velocity that the fluid should travel at in order to remain in the most efficient flow regime for heat tranfer if the fluid is i)water ii)paraffin oil iii) helium (1 atm) in each case Tinfinity= 75 deg
Polycyclic aromatic hydrocarbons (PAHs) are a class of organic chemicals associated with the combustion of fossil fuels. Undeveloped areas may have total PAH soil concentrations of 5 µg/kg
Find the confidence limit (95% confidence level), true value (from literature), absolute error, and relative error).
Perform whatever separations and tests you think necessary to determine which ions are in fact present
A buffer solution is prepared by mixing 20.0 mL of 0.032 M benzoic acid C6H5COOH(aq) solution with 25.0 mL of 0.022 M NaC6H5COO(aq). What is the pH of the buffer produced? (Ka of benzoic acid = 6.2x10^-5).
if 0.55 g of a gas dissolves in 1.0 l of water at 20.0 kPa of pressure, how much will dissolve at 110.0 kPa of pressure?
an aerosol can has a gas pressure of 144 kpa at 293 k. calculate the pressure when the can is heated to 425
Gallium crystallizes in a primitive cubic unit cell. The length of an edge of this cube is 362 pm. What is the radius of a gallium atom
RNAse is an enzyme that cleaves the P-O5\' bond in RNA. It has two His residues in the active site. Suggest a plausible explanation
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