Lab 15, the Law of Chemical Equilibrium Pre-Lab 1. For the reaction at 20 degree
ID: 894409 • Letter: L
Question
Lab 15, the Law of Chemical Equilibrium
Pre-Lab
1. For the reaction at 20 degrees Celsius, NH3(aq) + H+(aq) NH4+(aq) the
equilibrium constant is calculated to be K = 4.5 X 10^8.
A). what is favored in this reaction: starting material or products?
B). If the reaction is exothermic and the temp is increased to 40 C, how would the
equilibrium concentration of NH3 change? Explain.
2. If the reaction between iron(III) ion and thiocyanate ion yielded an equilibrium
concentration of 0.15 M for each of these ions, what is the equilibrium
concentration of the red iron(III)-thiocyanate complex? Show work.
3. In the reaction NH3(g) + H2O(I) NH2- + H3O+, the equilibrium constant is
10^-34. Would this reaction be practical to run? Explain.
Explanation / Answer
Lab 15, the Law of Chemical Equilibrium Pre-Lab 1. For the reaction at 20 degree
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