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For the dissociation of acetic acid, CH3COOH CH3COO- + H+, the free energy change, ΔG° = 27.26 kJ/mol. What is the free energy change, ΔG°', in the biochemical standard state? Given R = 8.315 J/mol · K. T = 25°C.
+23.91 kJ/mol
Consider the following mechanism for the oxidation of bromide ions by hydrogen peroxide in aqueous acid solution. H+ + H2O2 ? H3O2+ (rapid equilibrium)
A 15.8 g strip of zinc metal was placed in 100.0 mL of silver nitrate, AgNO3(aq). when the reaction was complete, the strip of zinc had a mass of 13.1g. what was the concentration of the silver nitrate solution ?
The Ksp of barium carbonate (BaCO3) is 5.0*10^-9 at 25.0 C. If a 20.0 mL sample of 0.1 M Ba(NO3)2 is added to 50.0 mL of 0.1 M Na2CO3.
The concentrations of NaCl and KI are at 0.100 M and 0.090 M, respectively, in the following electrochemical cell:You'll need to use the Nernst equation to solve this problem
In a laboratory investigation involving a neutralization reaction, a scientist adds potassium hydroxide to nitric acid (balanced reaction following):
The synthesis of zinc iodide was performed using 1.7748g of zinc and 1.1185g of iodine. Determine the limiting reactant and calculate the theoretical yield of zinc iodide in grams
What does a water molecule that loses a hydrogen become?
When 100 mL each of 2.0 × 10-4 M Ca2+ and 2.0 × 10-2 M F- are mixed, what is the remaining Ca 2+ ion concentration and is precipitation complete. The solubility product constant of CaF 2 is 5.3 × 10-9.
The densities of both gases are the same The masses of both gases are the same The number of molecules of both gases are the same Both the masses and the densities are the same
An element crystallizes in a body centered cubic lattice. The edge of the unit cell is 3.47 Å, also the density of the crystal is 7.98 g/cm3. Compute the atomic weight of the element.
A zero-order reaction has a constant rate of 1.50×10?4. If after 55.0 seconds the concentration has dropped to 4.50×10?2, what was the initial concentration?
a natural hormone of moths has a molecular formula of C21H40(its a zero not an o) and yields the following three compounds on ozonolysis; (1) dodecanol
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