Naming Acids/Bases
What is the name of the molecule: HCl
Hydrochloric acid
What is the Henderson-Hasselbalch equation?
pH = pKa + log(X-/HX)
What is an electron pair acceptor?
Lewis acid
What will react with water to form the conjugate acid and hydroxide ion?
Weak Base
What is the pH when [H+] = 0.070 M?
1.15
What is the name of the molecule: CH3COOH
Acetic acid
The best buffer is when pH=?
pH=pKa
What will ionize to yield hydrogen ions?
Arrhenius acid
A strong acid/ base dissociates ___% in water?
100%
What is the pOH when [H+] = 4.71 x 10^-7 M?
7.67
What is the name of the strong base KOH?
Potassium Hydroxide
What is a buffer?
An aqueous solution consisting of a mixture of a weak acid and its conjugate base, or vice versa.
What is a proton acceptor?
Bronstead-Lowry base
What is Ka?
Ka is the acid dissociation constant
What is pH?
pH is the negative (base-10) logarithm of the hydronium ion or hydrogen ion concentration
What is the formula for Nitric Acid?
HNO3 = H+ + NO3-
What would be the pH of a 100.0 mL solution containing 0.24 M formic acid (HCHO2; Ka = 1.8x10-4) and 0.24 M sodium formate (NaCHO2)?
pH = 3.74
What is a Bronstead-Lowry acid?
Proton donor
What would be the pH of a 100.0 mL solution containing 0.15 M formic acid (HCHO2; Ka = 1.8x10-4) and 0.24 M sodium formate (NaCHO2)?
pH = 3.95
What is the conjugate base of sulfuric acid?
HSO-4
What are the 6 strong acids?
HCl, HBr, HI, HNO3, H2SO4, HClO4
What does a buffer do?
A solution that can resist pH change upon the addition of acidic or basic components. It is able to neutralize small amounts of added acid or base, making the pH of the solution relatively stable.
What is an electron-pair donor?
Lewis base
What is a polyprotic acid?
Polyprotic acids contain more than one mole ionizable hydronium ions per mole of acids. (More than one H+ per molecule)
What percent of formic acid (HCOOH) is dissociated in a 0.1 M solution of formic acid? The Ka of formic acid is 1.77 x 10-4.
4.2%