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Example Questions
Example Question #661 : Ap Chemistry
Calculate the equilibrium constant for given the following information:
Example Question #662 : Ap Chemistry
Calculate the equilibrium constant for given the following information:
Example Question #1 : Calculating The Equilibrium Concentrations
Consider formation of Nitrogen monoxide: with . If the initial concentration of N2 was 0.085M and O2 was 0.038 M, what is the concentration of nitrogen monoxide at equilibrium?
1.1 x 10-3 M
3.2 x 10-8 M
1.1 x 10-4 M
1.2 x 10-6 M
1.2 x 10-5 M
1.2 x 10-5 M
Example Question #51 : Chemical Equilibrium
Given the ICE table below, what are the signs on the terms that would appear in the “Change” row?
-x, -x, +x
+x, +2x, +x
-x, -2x, +x
+x, +x, +x
+x, +4x, -x
-x, -2x, +x
Based on the balanced equation, one would use -x, -2x, and +x.
Example Question #1 : Calculating The Equilibrium Concentrations
Find the equilibrium concentrations for C in the following chemical reaction: A + B -> 2C
K = 9.0 x 10-8
0.12 M
1.1 M
3.0 x 10-3 M
1.5 x 10-4 M
1.2 x 10-2 M
1.5 x 10-4 M
Example Question #2 : Calculating The Equilibrium Concentrations
What is the equilibrium concentration for A- in the following reaction if the starting concentration of HA is 0.60 M?
1.2 M
3.5 x 10-3 M
2.3 x 10-3 M
1.2 x 10-5 M
2.3 x 10-4 M
3.5 x 10-3 M
Example Question #3 : Calculating The Equilibrium Concentrations
What is the equilibrium concentration for A- in the following reaction if the starting concentration of HA is 0.30 M?
2.1 M
3.9 x 10-5 M
2.1 x 10-3 M
1.5 x 10-3 M
1.5 x 10-4 M
3.9 x 10-5 M
Example Question #81 : Reaction Types
Put the following acids in order of their INCREASING acid strength: HI, HCl, HBr, HF.
HCl, HBr, HI, HF
HI, HBr, HCl, HF
HF, HCl, HBr, HI
HI, HCl, HBr, HF
HF, HBR, HI, HCl
HF, HCl, HBr, HI
Larger halogen size leads to greater acidity because of weaker H-X interactions.
Example Question #82 : Reaction Types
Put the following acids in order of their INCREASING acid strength: HCl, HS, HBr, H2Se.
H2S, HCl, HBr, H2Se
H2Se, HBr, HS, HCl
HBr, H2Se, HCl, H2S
H2S, H2Se, HCl, HBr
HCl, HS, HBr, H2Se
H2S, H2Se, HCl, HBr
Acid strength increases from left to right across a period and increases going down a group.
Example Question #83 : Reaction Types
Put the following acids in order of their DECREASING acid strength: HOCl, HOBr, HOI, H2O.
HOI, HOBr, HOCl, H2O
H2O, HOCl, HOBr, HOI
H2O, HOI, HOBr, HOCl
HOCl, H2O, HOBr, HOI
HOCl, HOBr, HOI, H2O
HOCl, HOBr, HOI, H2O
Acid strength of an oxy acid increases with increasing electronegativity on the halogen.
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