In order to determine how much Ag(NO3) can dissolve in aqueous solution, which value must be known?
a) Ka
b) pKa
c) the standard reduction potential, E°, for the silver half-reaction
d) Ksp
Explanation
The solubility product, Ksp, is an equilibrium constant for a solvation reaction. Like any other equilibrium constant, Ksp equals products over reactants raised to the power of their coefficients. Pure solids and pure liquids are left out of the Ksp. For example, Ba(OH)2 (s) dissolved in aqueous solution has Ksp=[Ba2+][OH–]2.
a) Ka, incorrect, Ka is a measure of how much an acid dissociates: Ka=[H+][A–]/[HA].
b) pKa, incorrect, pKa is related to the Ka by pKa=-log(Ka) and has nothing to do with solubility.
c) the standard reduction potential, E°, for the silver half-reaction, incorrect, The standard reduction potential is useful for calculating the voltage in a galvanic, concentration, or electrolytic cell.
d) Ksp, correct.
Want more MCAT practice?
We’ve got options for every schedule and learning style!
From the best online MCAT course created by top instructors with 524+ MCAT scores to the most representative full-length practice exams and private tutoring, we can custom tailor your MCAT prep to your goals!
Not sure which option is right for you? Schedule a free MCAT consultation with an MCAT expert using the form below. No obligation, just expert advice.
Related Posts
Search the Blog
Free Consultation
Interested in our Online MCAT Course, One-on-One MCAT Tutoring or Med admissions packages? Set up a free consultation with one of our experienced Senior Student Advisors.
Schedule NowPopular Posts
-
-
MCAT Blog What's on the MCAT? -
-
-
MCAT Blog How to Review MCAT Full Lengths
Free MCAT Practice Account
Need great MCAT practice?Get the most representative MCAT practice possible when you sign up for our free MCAT Account, which includes a half-length diagnostic exam and one of our full-length MCAT practice exams.
Learn More