Sodium acetate gives potato chips a salt an vinegar flavor. Which statement is true of a...
Sodium acetate gives potato chips a salt an vinegar flavor. Which statement is true of a solution of sodium acetate (NaC2H3O2)?
a) It is weakly acidic
b) It is strongly acidic
c) It is strongly basic
d) It is weakly basic
e) We cannot predict its acid-base properties without knowing the Ka and Kb.
Homework Answers
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Sodium acetate gives potato chips a salt an vinegar flavor.
Which statement is true of a...
A solution is made by adding 2.3 moles of Sr3(PO4)2 in 3.5L of water. Which of...
A solution is made by adding 2.3 moles of Sr3(PO4)2 in 3.5L of water. Which of the following statements are true? The solution is strongly basic The solution is strongly acidic The solution is weakly basic The solution is weakly acidic The solution is neutral The Ka and Kb of the species added must be known Why would this not be weakly basic if the "roots" are Sr(OH)2, a strong base, and H3PO4, a weak acid? Do I have the...
Consider a 0.20 M solution of the salt, sodium cyanide, NaCN. A) What acid and What...
Consider a 0.20 M solution of the salt, sodium cyanide, NaCN. A) What acid and What base reacted to from this salt? B) Classify the acid above as a strong or weal acid. Classify the base as a strong or weak base? C) Will the salt solution be acidic, basic, or neutural? D) Calculate the ph of the solution? The Ka of HCN is 4.9 x 10-10?
Question 8 3 pts Which of the following is not a conjugate acid/base pair? O HC2H302/C2H302"...
Question 8 3 pts Which of the following is not a conjugate acid/base pair? O HC2H302/C2H302" O NH4+/NH3 CO2/C03 OH3PO4/H2PO4 Question 9 3 pts A 1.0 M solution of NaC2H3O2 in water is expected to be: Acidic because sodium acetate undergoes hydrolysis Neutral because sodium acetate is a salt Basic because acetate ion is the conjugate base of acetic acid Acidic because it forms acetic acid Question 10 3 pts Examples of ionizing radiation would include: infrared (IR) visible light...
Acetic acid (CH3COOH,CH3COOH, ?a=5.62×10−5)Ka=5.62×10−5) is a weak acid, so the salt sodium acetate (CH3COONa)CH3COONa)...
Acetic acid (CH3COOH,CH3COOH, ?a=5.62×10−5)Ka=5.62×10−5) is a weak acid, so the salt sodium acetate (CH3COONa)CH3COONa) acts as a weak base. Calculate the pH of a 0.445 M0.445 M solution of sodium acetate.
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...
Answer by true or false - if false correct the statement. ( 7-) The mixture of...
Answer by true or false - if
false correct the statement.
( 7-) The mixture of equi 0.2M solution of sodium acetate and acetic acid has lower buffer capacity than the mixture of equi 0.5M NaCl and HCI. 8- Electron pair donor) is the definition of Lewis acid. false= acceptor if acid donor if base (9-) Ka of NH4OH is 5.376x10-10. (10- pH for 0.1 M Acetic acid ( Ka = 1.8 x10 -S) is 1.73.
This is from a Study of Buffer Solutions and pH of Salt Solutions Lab. I calculated...
This is from a Study of Buffer Solutions and pH of Salt
Solutions Lab. I calculated Ka to be 3.2*10^-5. Why is my value
larger than the standard value?
Procedure:
10. How does your calculated value of Ka compare with the standard value of Ka for acetic acid? Discuss why your value may be larger or smaller than the standard value. Caleutats Ka 3.2x 10-5) Cyato-s Learning Objectives: 1. To test the acidic and basic properties of ionic compounds 2....
1. For each of the following, predict whether an aqueous solution of the salt would be...
1. For each of the following, predict whether an aqueous solution of the salt would be acidic, basic or neutral. Explain. a. Nacis b. NaF c. NHIS d. KHCO3 e. (CH3)2NH2NO31 2. What is the pH of a solution that is 0.060 M in potassium propionate (CH3CH2COOK) and 0.085M in propionic acid (CH3CH2COOH)? The Ka for propionic acid is 1.3x10-5.5 3. Suppose you need to prepare a buffer for a pH of 10.6. An acid-base pair (HA/A') to use has...
31. What will be the mass of hydrogen gas, H2, that is stored in a 15.0-L...
31. What will be the mass of hydrogen gas, H2, that is stored in a 15.0-L container at the prem 7.50 atm? The container is kept at 20.0°C. (Use molar mass of 2.00 g/mol for the hydro- 137 g b. 9.35 g a. c. 225 g d. 80.0 g 32. A conjugate acid-base pair is related by the loss and gain of H between 2 corresponding compounds on opposite sides of the reaction arrow. b. a. is not related in...
Question 8 3 pts Which of the following is not a conjugate acid/base pair? O HC2H302/C2H302" O NH4+/NH3 CO2/C03 OH3PO4/H2PO4 Question 9 3 pts A 1.0 M solution of NaC2H3O2 in water is expected to be: Acidic because sodium acetate undergoes hydrolysis Neutral because sodium acetate is a salt Basic because acetate ion is the conjugate base of acetic acid Acidic because it forms acetic acid Question 10 3 pts Examples of ionizing radiation would include: infrared (IR) visible light...
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...
Answer by true or false - if
false correct the statement.
( 7-) The mixture of equi 0.2M solution of sodium acetate and acetic acid has lower buffer capacity than the mixture of equi 0.5M NaCl and HCI. 8- Electron pair donor) is the definition of Lewis acid. false= acceptor if acid donor if base (9-) Ka of NH4OH is 5.376x10-10. (10- pH for 0.1 M Acetic acid ( Ka = 1.8 x10 -S) is 1.73.
This is from a Study of Buffer Solutions and pH of Salt
Solutions Lab. I calculated Ka to be 3.2*10^-5. Why is my value
larger than the standard value?
Procedure:
10. How does your calculated value of Ka compare with the standard value of Ka for acetic acid? Discuss why your value may be larger or smaller than the standard value. Caleutats Ka 3.2x 10-5) Cyato-s Learning Objectives: 1. To test the acidic and basic properties of ionic compounds 2....
1. For each of the following, predict whether an aqueous solution of the salt would be acidic, basic or neutral. Explain. a. Nacis b. NaF c. NHIS d. KHCO3 e. (CH3)2NH2NO31 2. What is the pH of a solution that is 0.060 M in potassium propionate (CH3CH2COOK) and 0.085M in propionic acid (CH3CH2COOH)? The Ka for propionic acid is 1.3x10-5.5 3. Suppose you need to prepare a buffer for a pH of 10.6. An acid-base pair (HA/A') to use has...
31. What will be the mass of hydrogen gas, H2, that is stored in a 15.0-L container at the prem 7.50 atm? The container is kept at 20.0°C. (Use molar mass of 2.00 g/mol for the hydro- 137 g b. 9.35 g a. c. 225 g d. 80.0 g 32. A conjugate acid-base pair is related by the loss and gain of H between 2 corresponding compounds on opposite sides of the reaction arrow. b. a. is not related in...
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