K expressions and Reaction Quotient ICE Charts and LeChatlier Conjugate Acids and Bases Kw Ka Kb pH and salt solutions
100
What is [C]^2 / [A]^2[B]
For the reaction 2A + B--->2C the appropriate form for the equilibrium constant expression is...
100
What is 2.00
If 0.400 moles/L of N2O4 is allowed to react, we find that the equilibrium concentration of NO2 is 0.525 mol/L. What is the equilibrium constant at this temperature?
N2O4 ⇆ 2 NO2
100
What is HCOOH(a) CN(b) HCOO(cb) HCN(ca)
HCOOH + (CN-) ⇄ (HCOO-) + HCN
100
What is 1.0 x 10^-14
What is the Kw value?
100
What is [OH]=1.3 x 10^-12 , pH=2.12 , pOH= 11.88
What is [OH], pH, and pOH if given [H+]= 7.5 x 10^-3
200
What is [Ca] / [H]^2
Write an expression for the equilibrium constant for this reaction.
Ca(OH)2(s) + 2H+(aq) ⇆ 2H2O(l) + Ca^2+(aq)
200
What is 0 and 4.0 (SO2)
4.0 mol/L of O2 is placed in a sealed container with a large excess of sulfur. What are the final concentration?
(1/8)S8 (s) + O2 (g) ⇆ SO2(g) Kc= 4.2 x 10^52
200
What is HF(acid) H20(base) F(cb) H3O(ca)
HF + H2O ⇄ (F-) + (H3O+)
200
What is 5.6 x10^-10
Acetic acid (HC2H3O2) has an acid dissociation constant of 1.8 x 10^-5. What is the Kb of C2H3O2?
200
What is [H]= 2.8 x 10^-5 , pH=4.56 , pOH=9.44
What is [H], pH, pOH if given [OH]= 3.6 x 10^-10
300
What is 0.055M
Gaseous CH4 and H2O were mixed in a 0.64L flask at 1800K. At equilibrium, the flask contains 0.36 mol of CO, 0.081 mol of H2 and 0.051 mol of CH4. What is the concentration of [H2O] at equilibrium?
K = 0.28 for CH4 + H2O ⇆ CO + 3H2
300
What is H2 and I2=0.0772
What are the final concentrations at equilibrium when 0.500M HI is combined with 0.100M H2 and 0.100M I2? (Hint: is it going in the reverse or forward direction)
2 HI (g) ⇆ H2 (g) + I2 (g) Kc= 0.0200 (at 745K)
300
What is base, acid, ca, cb
(HCO3-)+ H2O ⇄ H2O3 + (OH-)
300
What is 1.8 x 10^-4
The pH of a 0.10M solution of formic acid, HCHO2 is 2.38. What is the Ka of formic acid?
300
What is [H]= 5.0 x 10^-9 , [OH]= 2.0 x 10^-6 , pH=8.30
What is [H], [OH], pH if given pOH=5.70
400
What is 0.10
For the chemical equilibrium A + 2B ⇆ 2C, the value of the equilibrium constant, K, is 10. What is the value of the equilibrium constant for the reaction written in reverse? 2C ⇆ A+2B K=??? Given that: A+2B ⇆ 2C K=10
400
What is to the LEFT
W (s) + 6HCl (g) ⇆ WCl6(g) + 2H2(g)
In which direction will the system shift after increasing the pressure by adding WCl6.
400
What is acid, base, cb, ca
(NH4+)+ (CO3^-2)⇄ NH3 + (HCO3-)
400
What is 2.79
What is the pH of a 0.15 M solution of acetic acid solution (Ka= 1.8 x 10^-5)
400
What is acidic
Is NH4ClO3 acidic, basic or neutral?
500
What is Q=64 > K=0.046 so to the LEFT
In one experiment, 2.00 mol of CH4, 2.00 mol of CS2, 4.00 mol of H2S, and 4.00 mol of H2 are mixed in a 500 mL vessel at 960K, at this temperature K = 0.046 for the equation: CH4 + 2H2S ⇆ CS2 + 4H2 What direction will the reaction proceed to reach equilibrium?
500
What is to the RIGHT
W (s) + 6HCl (g) ⇆ WCl6(g) + 2H2(g) exothermic
In which direction will the system shift after reducing the temperature of the system from 330K to 298K?
500
What is acid, base, ca, cb
HCl + H2O ⇄ (H3O+) + (Cl-)
500
What is 11.13
What is the pH of a 0.100M NH3 solution (Kb= 1.8 x 10^-5 )
500
What is basic
Is NaClO acidic, basic, or neutral?






Test 2 Review

Press F11 for full screen mode



Limited time offer: Membership 25% off


Clone | Edit | Download / Play Offline