chem
What is an example of a monoprotic acid?
Hydrobromic acid
What is standard solution?
titrant
A basic solution contains more _____________ _____ than ______________ _____.
A basic solution contains more hydroxide ions then hydrogen ions.
A _____________ solution contains equal amounts of H+ or OH- ions.
A neutral solution contains equal amounts of H+ or OH- ions.
In a solution, weak acid produces a. A mixture of molecules and ions b. all ions c. all molecules d. anion, but no hydronium ions
A. a mixture of molecules and ions
What is the value of the equilibrium constant expression for the ionization of a weak acid?
Acid ionization constants
What is a chemical dye whose colors are affected by acidic and basic solutions?
Acid-base indicators
What solution contains more hydrogen ions than hydroxide ions?
Acidic solution
(Acids, bases, neither, or both?) Contains more hydrogen ions than hydroxide ions?
Acids contain more hydrogen ions than hydroxide ions
(Acids, bases, neither, or both?) React with carbonates?
Acids react with carbonates
(Acids, bases, neither or both?) Reacts with certain metals?
Acids react with certain metals
(Acids, bases, both, or neither?) Which taste sour?
Acids taste sour
What are some properties of acids?
Acids taste sour
How do acids react with litmus paper?
An acid will turn blue litmus paper red.
An acidic solution contains more ___________ _____ than ______________ ______.
An acidic solution contains more hydrogen ions than hydroxide ions.
Acid A and Acid B are of equal concentration and are tested with a conductivity apparatus. When electrode are placed in Acid A, the build glows dimly. When they are placed in Acid B, the bulb glows brightly. So, which of the following is true? a. Acid A is stronger than Acid B. b. Acid B is stronger than Acid A. c. Acid A and Acid B are of equal strength d. You cannot compare the strength of Acid A and B.
B. Acid B is stronger than Acid A.
In general, compounds formed from active metals, and hydroxide ions are a. strong acids b. strong bases c. weak acids d. weak bases
B. Strong bases
What is Kb is the value of the equilibrium constant expression for the ionization of a base. The smaller K value is the weaker base?
Base ionization constants
(Acids, bases, neither, or both?) Feels slippery?
Bases feel slippery
What are some properties of bases?
Bases taste bitter, and they are slippery when wet.
(Acids, bases, both or neither?) Which taste bitter?
Bases taste bitter.
How do bases fact with red litmus paper?
Bases turn red litmus blue
What solution contains more hydroxide ions than hydrogen ions?
Basic solution
(Acids, bases, neither or both)? What can turn litmus paper different colors?
Both acids and bases can turn litmus paper different colors. Bases=blue. Acids= Red
Sulfuric acid is a strong. What is true about the conjugate base? a. The conjugate base is amphoteric b. The conjugate base is strong c. The conjugate base is weak d. No conclusion can be made regarding the conjugate base
C. The conjugate base is weak
A chemical equation for the ionization of an acid uses a single arrow to the right (-->) to seperate the the reactants and the product sides of the equation. Which of the following is true? a. the arrow does not indicate the relative strength b. the ionizing acid is half ionized c. The ionizing acid is strong d. The ionizing acid is weak
C. The ionizing acid is strong
Carbonates react with acids to form _______ and _________ _________.
Carbonates react with acids to form water and carbon dioxide
What species produced when a base accepts a hydrogen ion?
Conjugate acid
What consists of two substances related to each other by donating and accepting of a single hydrogen ion?
Conjugate acid-base pair
What is the species that results when an acid donates a hydrogen ion?
Conjugate base
Why are Ka values all small numbers? a. A mixture of molecules and ions b.the equilibrium is not stable c.The solution contains a high concentration of ions d. The solution contain a high concentration of un-ionized acid molecules
D. The solution contains a high concentration of un-ionized acid molecules
Are weak acids goods conductors of electricity?
Ehh.. Weak acids produce fewer ions than strong acids so they cannot conduct electricity as well.
What is the point in a titration in which an indicator changes color?
End point
What is the point at which moles of H+ ion from the acid equals moles of OH- ion fromase?
Equivalence point
True or False? Stomach contents can have a pH of 2, which means they are basic?
False, stomach contents are acidic
True or False? The hydrogen ion concentration in a solution with a pH of 3 is two times greater than the hydrogen ion concentration in a solution with a pH of 5.
False. The hydrogen concentration in a solution with a pH of 3 is 100 times greater than the hydrogen ion concentration in a solution with a pH of 5.
True or False? If the pH of a solution is 3, its pOH is 10?
False. The pH of a solution is 3, its pOH is 11
True or False? No bases exist that only produce hydroxide ions and not produce them?
False. There are bases that do not contain hydroxide ions but produce hydroxide ions.
True or False? The pH of a solution is the negative logarithm of its hydroxide ion concentration?
False; The pH of a solution is the negative logarithm of its H+ ion concentration
All water solutions contain what two ions?
H+ and OH- ions
How do you know if products are favored in a reaction?
If K is greater than 1 the products are favored
How do you know if reactants are favored in a reaction?
If K is les than 1 reactants are favored
How do you make water more conductive?
If you add an acid or a base to water it produces ions that allow for conductivity.
What is the point at which the indicator used in a titration changes color?
Indicators and titration endpoint
What is the value of the equilibrium constant expression for the self-ionization of water?
Ion Product Constant for Water
What is the expression for the equilibrium constant, water Kw?
Kw=[H+][OH-]
(Acids, bases, both or neither?)Feels rough
Neither acids nor bases feel rough
(Acids, bases, both or neither?) Contain equal numbers of hydrogen and hydroxide ions?
Neither acids or bases contain equal numbers of hydrogen and hydroxide ions
What is a reaction in which an acid and a base react to produce a salt and water?
Neutralization
What is a reaction in which an acid and a base in an aqueous solution react to produce a salt water?
Neutralization reaction
Describe polyprotic acids
Polyprotic acids have more than one ionizable hydrogen, but they can only donate one hydrogen at a time.
Give an example of a neutral solution
Pure water
What is an ionic compound made up of a cation from a base and an anion from an acid?
Salt
What is an ionic product of an acid base reaction?
Salt
Some metals will react with acids to produce ___________ _______.
Some metals will react with acids to produce hydrogen gas
What is a solution of known concentration?
Standard solution
What is a base that dissociates entirely into metal ions and hydroxide ions?
Strong Base
What is an acid that ionizes completely?
Strong acid
In a solution, if the hydroxide ion concentration increases, what happens to hydrogen ion concentration?
The concentration decreases
Describe the conjugate base of a strong acid
The conjugate base of a strong acid is extremely weak. It does not allow the reaction to go in the reverse direction leading to 100% dissociation.
Describe the conjugate base of a weak acid
The conjugate base of a weak acid has a strong attraction to the hydrogen ion of the conjugate base. Therefore, the reverse reaction is possible and equilibrium is achieved between both directions
The relative amounts of H+ and OH- determine whether the water solution is ________ or ________.
The relative amounts of H+ and OH- determine whether the water solution is acidic or basic.
What is a method for determining the concentration of a solution by reacting a known volume of that solution with a solution of a known concentration?
Titration
What is a method for using a neutralization reaction to determine the concentration of a solution?
Titration
Are strong bases good conductors of electricity?
Yes
True or False? Pure water is neutral because it auto ionizes to form equal amounts of both ions?
True
True or False? Values of for pH range from 0 to 14?
True
True or false? Pure water does not conduct electricity?
True
True or false?The pH of a neutral solution at room temperature equals the pOH of the solution?
True
True or False? Pure water can react with water to form H+ and OH- ions?
True. Pure water is neutral because it ionizes to form equal amounts of both ions.
What is an acid that ionizes only partially in dilute and aqueous solution?
Weak acid
What ionizes only partially in dilute aqueous solution?
Weak base
Are strong acids good conductors of electricity?
Yes
What is a chemical dye that changes color based on the pH of a solution?
an acid base indicator
Which of the following dissociates entirely into metal ions and hydroxide ions in solution a. a strong acid b. a strong base c. a weak acid d. a weak base
b. a strong base
What is the stoichiometric point of titration?
equivalence point
Describe monoprotic acids
monoprotic acids have one ionizable hydrogen
What is the negative logarithm of the hydrogen ion concentration?
pH
What is the negative logarithm of the hydroxide ion concentration?
pOH
What is an example of polyprotic acid?
phosphoric acid
What does the value of Ka tell us?
whether the reactants or products are favored.