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A graph of abs vs. time of the product of an enzyme catalyzed reaction has a slope of 0.009 sec-1. What is the velocity of the reaction if the product has a molar absorptivity of 13,000 M-1 cm-1 and a path length of 0.5 cm in a 200 µL volume?
The bromocresolgreen end point of the titration was reached after the addition of 30.00 mL of hydrochloric acid solution. Calculate the concentration of the acid solution.
calculate the molecular mass of the nonionic solutes 64.3 grams of solute in 3.90 x 102 grams of water raises the
The acid dissociation constant for hypochlorous acid (HClO) is 3.0x10-8. Calculate the concentrations of H3O+, ClO- and HClO at equilibrium if the initial concentration of the acid is 0.05 M. What is the pH? I made an ice table and found x to be 3..
At this temperature iron is in the BCC form and will dissolve (interstitial) carbon up to about 0.001 wt%. If the criterion is that the carbon concentration equals 0.0002 wt% carbon at a depth of 100 microns, how long must the exposure be?
an iron nail weighing 5.10 g is allowed to react with oxygen according to the reaction below.4fe 3o2 rarr 2fe2o3a
When you initially standarized your NaOH sollution, you diluted your HCl stock solution and added water to it. If you used 24.8 ML of 0.18 M HCl stock solution and added another 26.2 mL of water, what is the new molarity of the acid
A total of 0.145 g of this subunit was dissolved in enough water to produce 2.00 mL of solution. At 28 Celsius the osmotic pressure produced by the solution was 0.138 atm. What is the molar mass of the protein?
Xenon gas is released during a certain chemical reaction and pushes back the atmosphere with a change in volume of the vessel (it has a movable piston) from 2 to 20 Liters. Calculate the work done by this release of gas.
Calculate the amount of 0.018 M KMnO4 solution required to completely oxidize 39.69 ml of .100 M FeSO4 in an acidic solution according to the following equation
In tables of thermodynamic data provided in chemistry books, one finds delta Hf, delta Gf, and delta S listed. Briefly explain why the entropy data are supplied as S
Why does the electron energy threshold of dissociation almost always exceeds the actual dissociation energy in contrast to dissociation, stimulated by vibrational excitation
What is the pH of a solution that is 0.30 M in Aniniline, C6H5NH2, and 0.15 M in Anilinium Chloride, C6H5NH3+ Cl-
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