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Question- 1) Criticize the following statement: when the enthalpy change for a reaction is negative and the entropy change is also negative the reaction is spontaneous.
2) For each of the following processes, give the algebraic sign (+ or -) of ?H°, ?S°, and ?G°. No calculations are necessary. Give a brief reason for your choices.
a) The splitting of liquid water into hydrogen and oxygen gases, a process that requires a considerable amount of energy to sustain.
b) The combustion of gasoline in the engine of your car, as exemplified by the combustion of octane.
2 C8H18 (g) + 25 O2 (g) ? 16 CO2 (g) + 18 H2O(g)
Explain the each and every step in detail for help
You need to load 10 ug of protein into one of the wells of a gel. This needs to be in 1x buffer and in a total volume of 15 uL. You are given a 10 ug/uL solution of protein, a 5x buffer, and water. How much of each should you mix to load the gel c..
Calculate the standard emf of a cell that uses Mg/Mg2+ and Cu/Cu2+ half-cell reactions at 25°C.
If the Km of carbonic anhydrase for the above reaction is 1.8 mM, what is the catalytic efficiency of this enzyme under these conditions? The units are s-1M-1.
If A 34 mL sample of HCl was triated with .58 M NaOH. Three drops of phenolphthalein was added to the HCL solution. Suppose the HCl solution changed color after 72mL of NaOH was added. Evaluate the molarity of the HCl Solution.
Problem- in both reaction #a and reaction #b, the dissolved hygrogen chloride in the hydrochloric acid solution is part of the system. Why is this
Two moles of potassium chloride and three moles of oxygen are produced from the decomposition of two moles of potassium chlorate, KClO3(s). Write the balanced equation. How many moles of oxygen are produced from 12 moles of potassium chlorate?
1 you react e-27-dimethyl-4-octene with bromine collect product and then perform a second reaction with potassium
Using the concentration of CH3COOH (0.8326M) and the equilibrium concentration of H3O+ (OJ = 31.6x10^-6 and milk = 3.16x10^-8), complete the reaction table for vinegar. Then calculate the acidity constant. Please show all work in solving the probl..
Propanoic acid has a Ka of 1.4 x 10^5. If we make a solution 0.100 M in propanoic acid, what concentration of sodium propanoate should be added to give a buffer with a pH of 5.0?
He decides to run an FTIR on the resultant powder on the cold finger apparatus. WHat functional group would clearly cofiirm that the white powder is indeed caffeine and not catechin?
A mass of 47.5 g of H2O(s) at 272 K is dropped into 225g of H2O(l) at 298 K in an insulated container at 1 bar of pressure. Calculate the temperature of the system once equilibrium has been reached.
What is the value of the rate constant for the reaction? How much time will take the consentration to drop to one tenth of its initial value?
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