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Explain why if benzoic acid were substituted for 2-methoxyphenylacetic acid in this experiment the enantiomeric ratio of the yeast reduction product could not be determined by 1 H NMR. If you begin with 50 mmol of benzaldehyde, and all 4 steps in your synthesis proceed in 100% yield and you were to use all of the product of each step in the next, what would be the yield of final product in grams? What if each step proceeds in 75% yield?
You need to understand the factors that determine whether a reaction is under thermodynamic control or kinetic control and be able to predict the corresponding product.
Your chemiluminescence reaction will actually occur very slowly in air. What component of air will bring about this reaction and what is its approximate concentration in air? If you had a stoppered flask with basic luminol and then opened it to th..
adiabatic bomb calorimeter with a heat capacity of 5.343 kj/K. The reaction resulted in an increase of 1.173K. Calculate delta U, delta H, and delta A
he sample required 5.5 mL of 0.0019 M NaOH to titrate the sample to neutrality. What was the pH of the gastric juice?
Calculate the dilution factor for all 7 test test tubes. Show all work/calculations. 0.1 ml of the solution from the serial dilution 10^-4, 10^-5 and 10^-6 was pipetted onto three separate agar plates.
Suppose you wanted to find out how many milliliters of 1.0 M AgNO3 are needed to provide 169.9 g of pure AgNO3.
"The chains of several cell membrane - bound proteins are known to wind back and forth through the cell membrane, such that some parts of the protein structure are extracellular, some parts are intracellular, and some parts lie within the cell mem..
Starting with only the solid, it is found that at 40 degrees Celsius the total gas pressure is .563 atm. Calculate the partial pressure of NH3 and CO2.
At constant pressure, 660 mL of nitrogen at 37°C are changed to 725 mL What is the new temperature of this gas?
What weight of Pb(NO2)2 wil have to be dissolved in one liter of water to prepare a 100ppm Pb2+ solution.
what is the molarity of a solution when 2.25g NaF is dissolved in enough water to make 250mL of solution
what are the heats of formation of the following species.
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