Supplemental Instruction
Iowa State University / Leader: / Sean Frey
Course: / Chemistry 167 SI
Instructor: / Dr. Bonaccorsi
Date: / 11/30/16
What will be the equilibrium expression for the following equations?
- N2O4(g) ⇌ 2 NO2(g)
- 2 NO(g) + O2(g) ⇌ 2 NO2(g)
- F- (aq) + H2O(l) ⇌ HF(aq) + OH- (aq)
- HF(aq) ⇌ H+ (aq) + F- (aq)
Given the two reactions
- F- (aq) + H2O (l) ⇌ HF (aq) + OH- k= 6.8 × 10-4
- HF (aq) ⇌ H+ (aq) + F- (aq) k= 1.5 × 10-11
- What is the equilibrium constant for H2O(l) ⇌ H+ (aq) + OH– (aq)?
Given the two reactions
- PbCl2⇌ Pb2+ + 2Cl– K1 = 1.77×10−10
- AgCl⇌ Ag+ + Cl– K2 = 1.14×10−4
- What is the equilibrium constant K for the following reaction? PbCl2 + 2 Ag+⇌ 2 AgCl + Pb2+
What is the new equilibrium constant?
- F- (aq) + H2O (l) ⇌ HF (aq) + OH- k= 6.8 × 10-4
- 2HF (aq) + 2OH- ⇌ 2F- (aq) + 2H2O (l) k=
Where would you expect the reaction to move towards if the k value is greater than 1?
Where would you expect the reaction to move towards if the k value is less than 1?
Consider the equilibrium CH3OH(g) ⇌ CO(g) + 2 H2(g), ∆H° = + 91 kJ.
Complete the statements below using the words increases, decreases, or does not change.
a) As the temperature increases, the amount of CH3OH(g)______.
b) As the volume of the container in which the reaction occurs decreases, the amount of H2(g)_____ .
c) The amount of CH3OH(g) _____ if a catalyst is added.
d) The amount of CO(g) ______after adding more CH3OH(g).
4.00 moles of HI are placed in an evacuated 5.00 L flask and then heated to 800 K
Kc= 0.016 for the equation2 HI(g) H2(g) + I2(g)
What is the concentration of H2?