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From the volume of titrant added, calculate the moles of vitamin C for each titration. Show asample calculation for trial 1, and then just state the final results for the calculation of trials 2and 3. Use 5 digits in all intermediate values and report the final value to the appropriatenumber of significant figures.Trial 1Trial 2Trial 3
What are the other side products present in this biocatytic reaction? Name the principal enzymes taking part in this bioconversion. To which class of enzymes do they belong to?
175g pure H2O was placed in a constant-pressure calorimeter and chilled to 10C 9.8g pure H2SO4 (also 10C) was added, stirred and the temperature rose to 19.8C.
Calculate the pH of a buffer solution that is 0.250 M in HCN and 0.170 M in KCN. For HCN, Ka = 4.9 x 10^-10 (pka = 9.31). Use the equilibirum approach to calculate this pH
If a Nicotinic acid, HC6H4NO2 is a weak monoprotic acid. A 5.7x10-2 M nicotinic acid is 1.6% ionized. Explain what is the Ka for this acid
What is the energy, in J/photon, of electromagnetic radiation that has a frequency of 2.89 x 1015Hz ? Express your answer to 3 significant figures in scientific notation and do not include units.(4.45 x 10-3 can be represented in scientific notati..
Predict whether the entropy change in the system is positive, negative or close to zero for each of the following processes
During studies of the reaction below, 2 N2H4(l) + N2O4(l) ? 3 N2(g) + 4 H2O(g) a chemical engineer measured a less-than-expected yield of N2 and discovered that the following side reaction occurs
Show the stereochemistry of the products you would expect when (2S,3S)-2,3-epoxypentane undergoes acid catalyzed hydrolosis.
What two properties of gold make it possible to find gold, but not metals like copper, silver, lead, and aluminum, by panning
Deduce the structure of each alcohol (Structure of A and structure of B)
Calculate the molality of methanol in a solution prepared by dissolving 75.0 mL methanol, CH3OH (density = 0.791 g/mL), in 150 g ethanol.
Explain which of the subsequent molecules would you expect to dissolve in water? Diethyl ether? Briefly define based on your understanding of IM forces why or why not
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