SAT II Chemistry : Reactions and Equilibrium
Study concepts, example questions & explanations for SAT II Chemistry
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Example Questions
Example Question #1 : Identifying And Defining Acids And Bases
Which of the following cannot act as a Bronsted-Lowry base (proton recipient) in aqueous solution?
Example Question #1 : P H
A scientist makes a solution by adding 0.2 grams of 
Example Question #1 : Oxidation Reduction Reactions
What is the oxidation number of nitrogen in 
First, note that the molecule does not have a charge, meaning that the oxidation numbers of each atom must add up to zero. Hydrogen has an oxidation number of 
Example Question #1 : Reaction Types
The following is a modified true/false question. In it, you must decide if each individual statement is true (T) or false (F). If both are true, then you must also decide if the second statement is a correct explanation (CE) of the first statement.
I: An 
BECAUSE
II: reduction is a loss of electrons
T, T (Statement II is not a correct explanation of Statement I)
T, T, CE
F, T
F, F
T, F
T, F
Statement II is false: reduction is a gain of electrons. Looking at statement I, the ion's charge would decrease by 3 in becoming a metal, which suggests that the ion gains 3 electrons. Thus, it is undergoing reduction.
Example Question #1 : Chemical Equilibrium
What is an expression for the equilibrium constant for the above equation?
The formula for the equilibrium constant is the product of the concentration of the products divided by the product of the concentration of the reactants. Since none of the reactants or products have coefficients, no exponents are needed in the expression. The phases do not affect the equilibrium constant in this example.
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