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Once the absorbent is packed in a liquid chromatography column, it is important that the level of the elution solvent not drop below the top of the adsorbent why?
Ethanol and gasoline are both automobile fuels. If gasoline is selling for $4.50, what would the price of ethanol have to be in order to provide the same amount of heat per dollar.
Confirm that the z-component of orbital angular momentum is a basis for an irreducible representation of A2 symmetry in C3v.
Calculate the molar solubility of FeCO3 . How many grams of FeCO3 are present in 15.0 L of a saturated solution.
Identifying Food Groups and Calculating Calories, Question: If one slice of chocolate cake contains 35g of carbohydrate, 15g of fat and 5g of protein
Aldehydes react with KCN and HCN to form cyanohydrins. The nitrile may be further converted to a carboxylic acid or -CH2NH2. Carry out the synthesis of a cynohydrin from cyclopentanecarboxaldehyde and convert it to a carboxylic acid and a -CH2NH2.
The value of Delta g for the conversion of 3-phosphoglycerate to 2-phosphoglycerate (2PG) is +4.4 kj/mol. If the concentration of 3-phosphoglycerate at equilibrium is 2.55 mM, what is the concentraction of 2 phosphoglycerate? assume a temperature ..
E was found to be -2,000.00 kJ/mol of an unknown liquid hydrocarbon at 298 K. In another experiment it was determined that for each mole of hydrocarbon, 5 moles of oxygen gas are consumed
Calculate the fraction of methyl isonitrile molecuules that haven an energy of 80.30 kJ or greater at at 450 k.
a solution containing 0.5000 moles of acetic acid per liter to 400.0 mL of 0.3000 M NaOH. What is the final pH? The Ka of acetic acid is 1.77*10-5.
Methanol, ethanol, and n-propanol are three common alcohols. When 1.00 g of each of these alcohols is burned in air, heat is liberated. Calculate the heats of combustion of these alcohols in kJ/mol.
calculate the molality of this solution (in mol solute/kg solvent).
with this balanced equation of copper carbonate calculate the concentration of copper in solution
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