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Calculate E°cell and indicate whether the overall reaction shown is spontaneous or nonspontaneous. O2(g) + 4H+(aq) + 4e- Picture 2H2O(l); E° = 1.229 V Al3+(aq) + 3e- Picture Al(s); E° = -1.662 V Overall reaction: 4Al(s) + 3O2(g) + 12H+(aq) ? 4Al3+(aq) + 6H2O(l) Answers: E°cell = -2.891 V, nonspontaneous E°cell = -2.891 V, spontaneous E°cell = 2.891 V, nonspontaneous E°cell = 2.891 V, spontaneous Spontaneous, but none of these values of E°cell is correct.
The compound malonate is an analog of succinate and is a strong inhibitor of succinate dehydrogenase. The active site of the enzyme will bind to either molecule, however malonate will not undergo any reaction and gets stuck on the enzyme.
Which of the following reactions will have the greatest rate at 298 K. Assume the frequency factor A is the same for all reactions. EXPLAIN YOUR ANSWER. No credit given if no explanation.
Estimate the average rate of production (Using this rate) of oxygen over the same time period. Considering the given equation 2H 2 O 2 --> 2H 2 O+O 2 -H 2 O 2
A gaseous mixture has a volume of 240L and a pressure of 1.35atm at 24*C. The mixture is 67% He and 33% Kr by mass. What is the mass of Kr
What is the synthesis for the following compunds from simple organic precursors? Make sure the starting sturcutre is a simple organic precursor
You obtain the following six measurements for the mass of water delivered by a special calibrated volumetric pipette
An ice cube of mass 9.0 is added to a cup of coffee, whose temperature is 85 and which contains 110 of liquid. Assume the specific heat capacity of the coffee is the same as that of water.
The kidneys function to eliminate ammonia from the blood. Based on the pK value, what is the molecular form that predominates in the blood? Could this molecule easily diffuse through the ehydrophobic lipid membrane of a kidney cell? Explain.
Instant cold packs, often used to ice athletic injuries on the field, contain ammonium nitrate and water separated by a thin plastic divider. When the divider is broken, the ammonium nitrate dissolves according to the following endothermic reactio..
Why has fluorine been added? The structure is Cephalosporin.
Explain what happened by using structures and chemical explanation of what did or did not happen.
Calculate the molar mass and density of dry air at 0 °C and 1.0 atm. Assume ideal behavior and use two significant figures
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