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267 solutions

Chemical Equilibrium

Q. Identify the products that are in equilibrium with NH3and H2O. A.NH2−and H3O+. D.NH4+and HO−. B.NH3, H+, and HO−. E.NH3and H2O. C.NH2−, H+, and H2O

Solved • Mar 26, 2020

Chemical Equilibrium

Q. Can K = 0? a) K could be zero. b) K could be very small but not zero c) K always approaches to 1. d) K is always greater then 1.

Solved • Mar 3, 2020

Chemical Equilibrium

Q. Explain why knowing the value of an equilibrium constant is useful

Solved • Mar 22, 2020

Chemical Equilibrium

Q. For the reaction Fe^3+ (aq) + SCN^- (aq) ⇌ FeSCN^2+ (aq) a calibration curve was prepared by the means described in your lab manual, Experiment #6. The trendline for the calibration curve determined by plotting Absorbance vs Concentration was found to be: y = 1228x - 0.002. An initial reaction mixture was prepared by mixing 5.0 mL of 0.002 M Fe^3+ solution with 5.0 mL of 0.002 M SCN^- solution and the mix was allowed to come to equilibrium. At equilibrium the absorbance of the solution was found to be 0.262. From this information and class and lab notes, determine the value of the equilibrium constant for this reaction.

Solved • Mar 20, 2020

Chemical Equilibrium

Q. At 460oC, the following reaction has an equilibrium constant of 85.0 ​​ SO2 (g) + NO2 (g) ó NO (g) + SO3 (g) ​ What are the concentrations of all species at equilibrium, if initially 0.050 moles of SO2 and 0.2 moles of NO2 are placed in a 5.0 liter reaction container and the system is allowed to come to​ equilibrium?

Solved • Mar 20, 2020

Chemical Equilibrium

Q. At 200 degrees C the equilibrium constant, Kc, = 1.4x10^-10 for the rection: N2O (g) + NO2 (g) --> 3 NO (g). When 7.90 g of N2O and 16.60 g of NO2 are placed in a 0.40 liter container the equilibrium is established. a. What is the equilibrium concentration of the NO? b. What is the value of the Kp for this reaction?

Solved • Mar 20, 2020

Chemical Equilibrium

Q. For the system: Q (g) + R2 (g) ⇌ QR2 (g), the equilibrium constant was found to equal 5.0 at a given temperature. If 0.08 moles of Q and 0.05 moles of R2 and 0.002 moles of QR2 are placed ina 2.0 liter container initially, what are the equilibrium concentrations of all species at that temperature?

Solved • Mar 20, 2020