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What is the difference between isomers and epimers? What is an example of each? During digestion, disaccharides like sucrose are hydrolyzed. What are the products of the reaction? How is the digestion different in the digestive system versus a beaker with the same chemical conditions of temperature, pH, etc? Are the chemical energetics in the beaker different from the bioenergetics in the gastrointestinal system?
calculate the entropy change associated with the conversion of 0.75 moles of water at 50 celcius to -10 celcius. the
Calculate the molarity of the following solution. 2.5 moles of glucose in 5.0L of solution. Express your answer using two significant figures
Which of the following peptides has a pI close to 5.5? Assume that the pKa value of the alpha-amino group is 9.6 and the pKa for the alpha-carboxylate group is 2.3. A. Ser-His-Arg-Asn
Question- The hydroxyl radical (OH) is an important oxidizing agent in the atmosphere. At 298 K the rate constant for the reaction of OH with benzene is 1.24?10?12 cm3molecule?1 s?1. Calculate the value of the rate constant in L mol?1 s?1.
At what angle would the second order light of the same wavelength be reflected on the same side of the normal to the grating as the incident of light
Compute the molarity of a solution made by adding 27.3mL of concentrated potassium hydroxide (34.5 % by mass, density 1.46 g/mL) to some water in a volumetric flask then adding water to the mark to make exactly 250mL of solution.
An aqueous solution is made by adding 50mL of 4.0 M NaCN to 30mL of 5.0 M HCN. Compute the pH of the solution.
Molecular hydrogen can be made from methane gas by the reaction below. How is the rate of disappearance of CH4 related to the rate of appearance of H2. [CH4] /t
three hundred gallons of a mixture containing 75.0 wt ethanol and 25 water mixture specific gravity 0.877 and a
When the reaction is carried out in the lab under the given conditions of temperature and pressure, only 1.6L of hydrogen gas are generated. What is the percent yield?
Also indicate whether the equilibrium partial pressure of HCl increases, decreases or remains the same: Action. The Temperature is increased: Some NH3 is added: The equilibrium mixture is transferred to a larger vessel
Automobile airbags contain solid sodium azide, NaN3, that reacts to produce nitrogen gas when heated, thus inflating the bag. 2NaN3(s) ------> 2Na(s) + 3N2(g) Calculate the value of w (work) for the following system if 14.7 g of NaN3 reacts comple..
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