7) 0.1 N NaOAc (salt of a strong base and a weak acid)
7) 0.1 N NaOAc (salt of a strong base and a weak acid)
Questions:
Which salt solutions give acidic solutions?
Titration of a weak base with a strong acid gives the salt of the weak base.
Which indicator should be used? Which salt solutions give virtually neutral solutions according to your estimates?
*Titration of a strong acid with a strong base yields a solution of their respective salts. Which indicator should be used?
Which salt solutions give basic solutions?
Titration of a weak acid with a strong base gives the salt of the weak acid. Which indicator should be used?
Homework Answers
give a brief description of the difference between a strong acid and a weak acid Name...
give a brief description of the difference between a strong
acid and a weak acid
Name Section Acids, Bases and Antacids * MS Experiment #8 Prelab Exercise Give a brief description of the differ a for each). A strong a strong acid and one example of a weak acid one exampy alone and is one which specific chemical Solution, whereas a weak acid ligsociet 30 urov n om ciate into H+ ion in aqueous solution Example of strong and chlo...
Consider the titration of a weak acid with a strong base. Which statement below is true...
Consider the titration of a weak acid with a strong base. Which statement below is true regarding the equivalence point in this titration? It occurs at a pH less than 7.0 because an acidic salt is formed. h It occurs at a pH greater than 7.0 because an acidic salt is formed. It occurs at a pH 7.0 because the acid has been neutralized It occurs at a pH greater than 7.0 because a basic salt is formed e It...
Consider the titration of a weak acid with a strong base. Which statement below is true...
Consider the titration of a weak acid with a strong base. Which statement below is true regarding the equivalence point in this titration? It occurs at a pH less than 7.0 because a basic salt is formed. O It occurs at a pH greater than 7.0 because an acidic salt is formed. O It occurs at a pH = 7.0 because the acid has been neutralized. O It occurs at a pH less than 7.0 because an acidic salt is...
Which of the following is true for the titration of a weak acid with a strong base? O a. The pH at the equivalence...
Which of the following is true for the titration of a weak acid with a strong base? O a. The pH at the equivalence point is acidic. b. A buffer solution is formed before the equivalence point. OC. The initial pH equals -log (conc. of the acid). Od. The indicator changes its color at the half-neutralization point.
Mg(OH)2 can be classified as a Select one: a strong acid b. weak acid c. Strong...
Mg(OH)2 can be classified as a Select one: a strong acid b. weak acid c. Strong base d. weak base H2SO4 can be classified as a Select one: a strong acid b. weak acid c. strong base d. weak base Mnl is Select one: a. acidic b. basic c. neutral Li2CO3 is Select one: a. neutral b. acidic c. basic
An unknown acid is titrated with a strong base (NaOH) to produce the above titration curve....
An unknown acid is titrated with a strong base (NaOH) to produce
the above titration curve. Key points on this graph reveal
important information about the substance and the solution created
with it.
What volume of NaOH is needed to reach the equivalence point
(the point where you added equal moles of NaOH to the
acid)? Select one of the following : ["10 mL", "5
mL", "20 mL", "30 mL", "40 mL", "25 mL", "15 mL", "35 mL"]
...
questions are in red Consider the following salt solutions: (i) NH4Cl – NH+ + C- Notice...
questions are in red
Consider the following salt solutions: (i) NH4Cl – NH+ + C- Notice that as a salt, NH,Cl dissociates completely in solution. So, what are the parents of this salt? The cation, NH, in this case, is from the base obtained by adding enough OHto balance the positive charge(s) on the cation; Viz, NH,OH. Similarly, the anion, Cl. comes from the acid. So the parent acid can be obtained by adding enough Hi to neutralize the charge...
EQUL 499- Det. Of pH of Strong Acid, weak acid, salt, and buffer solution Discussion Topics...
EQUL 499- Det. Of pH of Strong Acid, weak acid, salt, and buffer solution Discussion Topics Discussion Topics (need to submit in Blackboard): 1. What is a buffer? • A buffer is a solution that, when introduced to a new environment, undergoes minimal pH change, typically when adding acidic or basic solutions. These are extremely important for life because the pH of human blood is delicate and even if it is changed by 0.1, there may be catastrophic effects. 2....
8. Identify the following as a strong acid, a strong base, a weak acid, a weak base, or a neutral...
8. Identify the following as a strong acid, a strong base, a weak acid, a weak base, or a neutral solution: a. LiBr b. LiOH c. H20 d. HNO3 e. HOBr f. CH3NH2 g. NH3
8. Identify the following as a strong acid, a strong base, a weak acid, a weak base, or a neutral solution: a. LiBr b. LiOH c. H20 d. HNO3 e. HOBr f. CH3NH2 g. NH3
The pH of an aqueous solution of the salt Na SO, (sodium sulfate) will a) be...
The pH of an aqueous solution of the salt Na SO, (sodium sulfate) will a) be basic (because it is a weak acid-strong base salt) b) be acidic (because it is a strong acid-weak base salt) c) be neutral (because it is a strong acid-strong base salt) d) not be known (because it is a weak acid-weak base salt) e) no correct response
give a brief description of the difference between a strong
acid and a weak acid
Name Section Acids, Bases and Antacids * MS Experiment #8 Prelab Exercise Give a brief description of the differ a for each). A strong a strong acid and one example of a weak acid one exampy alone and is one which specific chemical Solution, whereas a weak acid ligsociet 30 urov n om ciate into H+ ion in aqueous solution Example of strong and chlo...
Consider the titration of a weak acid with a strong base. Which statement below is true regarding the equivalence point in this titration? It occurs at a pH less than 7.0 because an acidic salt is formed. h It occurs at a pH greater than 7.0 because an acidic salt is formed. It occurs at a pH 7.0 because the acid has been neutralized It occurs at a pH greater than 7.0 because a basic salt is formed e It...
Consider the titration of a weak acid with a strong base. Which statement below is true regarding the equivalence point in this titration? It occurs at a pH less than 7.0 because a basic salt is formed. O It occurs at a pH greater than 7.0 because an acidic salt is formed. O It occurs at a pH = 7.0 because the acid has been neutralized. O It occurs at a pH less than 7.0 because an acidic salt is...
Which of the following is true for the titration of a weak acid with a strong base? O a. The pH at the equivalence point is acidic. b. A buffer solution is formed before the equivalence point. OC. The initial pH equals -log (conc. of the acid). Od. The indicator changes its color at the half-neutralization point.
Mg(OH)2 can be classified as a Select one: a strong acid b. weak acid c. Strong base d. weak base H2SO4 can be classified as a Select one: a strong acid b. weak acid c. strong base d. weak base Mnl is Select one: a. acidic b. basic c. neutral Li2CO3 is Select one: a. neutral b. acidic c. basic
An unknown acid is titrated with a strong base (NaOH) to produce
the above titration curve. Key points on this graph reveal
important information about the substance and the solution created
with it.
What volume of NaOH is needed to reach the equivalence point
(the point where you added equal moles of NaOH to the
acid)? Select one of the following : ["10 mL", "5
mL", "20 mL", "30 mL", "40 mL", "25 mL", "15 mL", "35 mL"]
...
questions are in red
Consider the following salt solutions: (i) NH4Cl – NH+ + C- Notice that as a salt, NH,Cl dissociates completely in solution. So, what are the parents of this salt? The cation, NH, in this case, is from the base obtained by adding enough OHto balance the positive charge(s) on the cation; Viz, NH,OH. Similarly, the anion, Cl. comes from the acid. So the parent acid can be obtained by adding enough Hi to neutralize the charge...
EQUL 499- Det. Of pH of Strong Acid, weak acid, salt, and buffer solution Discussion Topics Discussion Topics (need to submit in Blackboard): 1. What is a buffer? • A buffer is a solution that, when introduced to a new environment, undergoes minimal pH change, typically when adding acidic or basic solutions. These are extremely important for life because the pH of human blood is delicate and even if it is changed by 0.1, there may be catastrophic effects. 2....
8. Identify the following as a strong acid, a strong base, a weak acid, a weak base, or a neutral solution: a. LiBr b. LiOH c. H20 d. HNO3 e. HOBr f. CH3NH2 g. NH3
8. Identify the following as a strong acid, a strong base, a weak acid, a weak base, or a neutral solution: a. LiBr b. LiOH c. H20 d. HNO3 e. HOBr f. CH3NH2 g. NH3
The pH of an aqueous solution of the salt Na SO, (sodium sulfate) will a) be basic (because it is a weak acid-strong base salt) b) be acidic (because it is a strong acid-weak base salt) c) be neutral (because it is a strong acid-strong base salt) d) not be known (because it is a weak acid-weak base salt) e) no correct response
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