Chemistry Chapter 19
What is transferred between a conjugate acid-base pair
A proton
Which type of solution is one with a pH of 8
Basic
What illustrates amphoterism?
H2O+H2O = H3O+ + OH-
Negative logarithm of the hydrogen ion concentration
pH
If the H+ in a solution is 1x10^-1 mol/L, what is the OH-
1x10^-13
What is the pH of a solution with a concentration of 0.01M hydrochloric acid?
2 pH
What is a property of a base?
Bitter taste
What is the hydrogen-ion concentration if the acid dissociation constant is .000001 and the acid concentration is .01 M?
Ka = H+^2 / [HA] .000001/1 = H+^2/.01 Cross multiply 1x10^-8 = H+^2 1x10^-4 = H+
what is the acid dissociation constant of a weak acid if a concentration of .3 M gives a hydrogen ion concentration of .001 M
Kw = .001M^2/.3 Kw = 3.33 x 10^-6
What is an Arrhenius base
LiOH
Acid with two ionizable protons
diprotic acid
if the hydrogen ion concentration is 1x10^-13 M, what is the pOH of the solution?
1 pOH
A liter of unpure water has 10^-4 mol of hydroxide ions. What is the concentration of hydronium ions in this sample of water.
1 x 10^-10
What is the ion-product constant for Water
1 x 10^-14
What is the charge on the hydronium ion
1+
What is the hydrogen ion concentration if the pH is 3.7
1.99x10^-3M
What is the pH when the hydrogen ion concentration is 7x10^-3M
2.2pH
If the Hydrogen Ion concentration is 10^-7M, what is the pH of the solution?
7pH
When an acid reacts with a base, what compounds are formed?
A salt and water
What is an acid according to Arrhenius?
A substance that ionizes to yield protons in aqueous solutions
An indicator is what type of compound
A weak base or acid
Which of the following pairs consists of a weak acid and a strong base
Acetic Acid, Sodium Hydroxide
What are acids and bases according to Bronsted Lowry Theory
Acids are hydrogen-ion donors, and bases are hydrogen-ion acceptors.
If the hydrogen ion concentration of a solution is 10^-10M, is the solution acidic, alkaline, or neutral?
Alkaline
A .12 M solution of an acid that ionizes only slightly in a solution would be termed
Dilute and Weak
In a neutral solution, the H+ is ____
Equal to OH-
The formula of the hydrogen ion is often written as ___
H+
What is the formula for phosphoric acid
H3PO4
Which base is strong, but never concentrated
Magnesium Hydroxide
Which of the following represents a Bronsted-Lowry conjugate acid-base pair
NH4+ and NH3
What is a property of an acid?
Sour Taste
The process of adding a known amount of solution of known concentration to determine the concentration of another solution is called
Titration
The ionization constant (Ka) of HF is 6.7 x 10^-4. Which of the following is true in a .1 M solution of this acid.
[HF] is greater than [H+][F-]
A lewis acid is a substance that can
accept a pair of electrons
What is the pH of a solution with a concentration of .01 M hydrochloric acid
pH = -log(0.01 M) pH = 2