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A student wants to carry out the Fischer Esterifiction of propionic acid with 1-pentanol. For this reaction he/she needs a three molar excess of the alcohol. The student started the reaction with 3.60mL of the carboxylic acid. Explain what is the volume (mL) of alcohol needed for this reaction? Illustrate all steps of your calculations. Include all units as well as any references
Calculate the heats of reaction for the following unbalanced reactions. Then use Hess' law to find the heat of reaction for the overall process.
a 1.60 g sample of a large biomolecule a nonelectrolyte was dissolved in 18.0 g of carbon tetrachloride. the boiling
Predict whether creatine kinase will operate in the direction of ATP synthesis or phosphocreatine synthesis at 25 degrees C given that:
A 20.0 mL sample of hypobromous acid (HBrO) was titrated with 0.180 M KOH. To reach the equivalence point required 27.75 mL of KOH. Ka for HBrO is 2.8 x 10^-9
When 14C labeled 4-hydroxyproline was administer to rats, the 4-Hydroxyproline in newly synthesized collage was not radiolabeled
While 111g of 2-methyl-2-propanol was heated with phosphoric acid, a colorless gas evolved. This gas was passed through a CCl4 solution containing 0.16 g Br2 per mL solution. Exactly 1.0 L ofthe solution was discolored by the gas generated in ther..
When a 0.325 g sample was studied by combustion analysis, 0.583 g of CO2 and 0.0790 g of H2O formed. How many moles of each of the following were in the original sample
A zero-order reaction has a constant rate of 2.00×10-4 . If after 50.0 seconds the concentration has dropped to 6.00×10-2 , what was the initial concentration?
the balanced equation for a reaction in the process of the reduction of iron ore to the metal is shown below.fe2o3s 3
re-establish equilibrium conditions as described: The pressure if the system is increased by decreasing the total volume. a) shift to the left b)shift to the right c) no change
A reaction has a standard free-energy change of -14.40 kJ mol-1 (-3.442 kcal mol-1). Calculate the equilibrium constant for the reaction at 25 °C.
A certain substance has a heat of vaporization of 34.75 kJ/mol. At what Kelvin temperature will the vapor pressure be 4.00 times higher than it was at 289 K
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