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Determine which type of metabolism ( aerobic or anaerobic) is primarily responsible for providing energy for prolonged low levels of activity?
Estimate the total energy change for this process. Pay careful attention to units. Gas in a piston-cylinder apparatus is heated with 1.500 kcal while simultaneously decreasing its volume from 1.500
The reaction is accompanied by a decrease in volume, so that there is a work flow from the surroundings of 10. kJ. A chemical reaction involving gases takes place in a vessel fitted with a movable p
Determine the pH of a solution of 0.2 M MES and 1.0 M glacial acetic acid using a 9:1ratio? MES pKa=6.15 and HAC pKa=4.76.
Explain the advantages and disadvantages of participating in such a drug study?Explain why it is important that studies use placebos as well as test drugs?
Explain how do NSAIDs suppress inflammation?Explain why is acetaminophen chosen over aspirin for the relief of pain associated with the surgical procedures?
Discuss how can a drug such as penicillin kill bacterial cells without killing human cells? Determine the three classes of antiviral drugs? How does each work?
Estimate the activation energy for this reaction when heated to a high temperature, cyclo-propane is converted to propane. Rate constants for this reaction are 1.10 x 10-4 s-1 at 470oCabd
Determine the equilibrium concentrations of all species if 1.60 moles of pure BrCl are initially placed in a 2.5 L closed flask and allowed to reach equilibrium.
How can calculate the concentration of the final solution when a 35.2 ml, of 1.66 M KMnO4 solution is mixed with 16.7 ml. of0.892 M KMnO4 solution.
Write down the structures of the three geometric isomers of dibenzal acetone and assign each one to the three molecules described. Disregard single trans and bond cis isomerism.
Explain why do you extract the organic solution with the aqueous solution 3 times with15mL rather than just once with 45 mL? Discuss which layer upper, or lower will each of the following solvents u
Determine the mass of the original magnesium chloride sample when a sample of MgCl2 is dissolved in the water, and the solution is then treated with an excess of AgNO3 to yield 1.92g of AgCl.
Does the melting point give such information? What evidence do you have that your product consists of a single geometric isomer or a mixture of isomers?
Find out the five compounds of N, H and O described below. For each compound write a Lewis structure that is consistent with the information given.
Discuss how would your measured percent the NaHCO3 change from the correct value if your final product after heating was not totally dry? Also given the following equations
If we inject 120.0 mL of liquid helium and allow the entire system to warm to room temperature (25 °C), determine the pressure inside the bottle?
Determine the numbers of milliliters of 0.0620M NaOH are needed to titrate each of the following solutions to the equivalence point?
A buffer solution which is having 0.19 mol of sodium acetate and 0.19 mol of acetic acid in the 1.90 L. Determine the pH of this buffer? Determine the pH of the buffer after the addition of 0.09 mol o
Determine the pH of a buffer that is 0.18 M in sodium lactate and 0.30 M in lactic acid. Determine the pH of a buffer formed by mixing 60. mL of 0.11M lactic acid with 88 mL o
Determine the pH of a solution prepared by mixing the 15 mL of 0.1M NaOH and 30 mL of 0.1 M benzoic acid solution. (Benzoic acid is monophonic; its dissociation constant is 6.5 x10-5)
While searching for a replacement fuel, you discover some diboron, B_2-_. As head engineers of your starship in charge of the warp drive you notice that the supply of dilithium is critically low.
An unusual category of acids known as super acids, which are defined as any acid stronger than 100% sulfuric acid, can be prepared by seemingly simple reactions similar to the one below.
Calculate the hybridization and molecular structure of the central atom X in the polyatomic ion XY_3_^+^ given the following information: A neutral atom of X contains 36 electrons, and the element