Determine the quantity of sodium acetate (CH,COONa) needed to create buffer solution at a particular pH. Do this by constructing an ICE table, writing the equilibrium constant expression, and using this information to determine the mass of starting material required. The value of Ka for CH,COOH is 1.8 x 10°. Complete Parts 1-3 before submitting your answer. NEXT > Sodium acetate (CH,COONa) is added to an existing 500.0 mL solution of 0.200 M CH,COOH to form a buffer with a pH equal to 5.000. Let x' represent the concentration of CH,COO in the water after the addition of CH,COONa. Fill in the ICE table with the appropriate value for each involved species to determine concentrations of all reactants and products. CH,COOH(aq) H,O(1) HO(84) + CH,COO (aq) Initial (M) Change (M) + Determine the quantity of sodium acetate (CH,COONa) needed to create buffer solution at a particular pH. Do this by constructing an ICE table, writing the equilibrium constant expression, and using this information to determine the mass of starting material required. The value of Ka for CHCOOH is 1.8 x 10°. Complete Parts 1-3 before submitting your answer. < PREV NEXT > Based on your ICE table (Part 1) and the definition of Ka, set up the expression for Ka in order to determine the unknown. Each reaction participant must be represented by one tile. Do not combine terms. Ka = = 1.8 x 10
Determine the quantity of sodium acetate (CH,COONa) needed to create buffer solution at a particular pH. Do this by constructing an ICE table, writing the equilibrium constant expression, and using this information to determine the mass of starting material required. The value of Ka for CH,COOH is 1.8 x 10°. Complete Parts 1-3 before submitting your answer. NEXT > Sodium acetate (CH,COONa) is added to an existing 500.0 mL solution of 0.200 M CH,COOH to form a buffer with a pH equal to 5.000. Let x' represent the concentration of CH,COO in the water after the addition of CH,COONa. Fill in the ICE table with the appropriate value for each involved species to determine concentrations of all reactants and products. CH,COOH(aq) H,O(1) HO(84) + CH,COO (aq) Initial (M) Change (M) + Determine the quantity of sodium acetate (CH,COONa) needed to create buffer solution at a particular pH. Do this by constructing an ICE table, writing the equilibrium constant expression, and using this information to determine the mass of starting material required. The value of Ka for CHCOOH is 1.8 x 10°. Complete Parts 1-3 before submitting your answer. < PREV NEXT > Based on your ICE table (Part 1) and the definition of Ka, set up the expression for Ka in order to determine the unknown. Each reaction participant must be represented by one tile. Do not combine terms. Ka = = 1.8 x 10
Chapter15: Acid-base Equilibria
Section: Chapter Questions
Problem 3RQ: One of the most challenging parts of solving acidbase problems is writing out the correct equation....
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Question
Transcribed Image Text:Determine the quantity of sodium acetate (CHCOONa) needed to create buffer solution at a
particular pH. Do this by constructing an ICE table, writing the equilibrium constant expression, and
using this information to determine the mass of starting material required. The value of Ka for
CH₂COOH is 1.8 × 105. Complete Parts 1-3 before submitting your answer.
PREV
0
1
3.6 × 10³
Based on your ICE table (Part 1) and the equilibrium expression, Ka (Part 2), determine the original mass of solid
CH₂COONa added to create this buffer solution.
0.360
5.9 × 105
30
mNaCH₂COO
4.3 × 105
2
21
=
43
g
3
11
15
RESET
59
![Determine the quantity of sodium acetate (CH₂COONa) needed to create buffer solution at a
particular pH. Do this by constructing an ICE table, writing the equilibrium constant expression, and
using this information to determine the mass of starting material required. The value of Ka for
CH₂COOH is 1.8 × 105. Complete Parts 1-3 before submitting your answer.
NEXT
>
Sodium acetate (CH₂COONa) is added to an existing 500.0 mL solution of 0.200 M CH₂COOH to form a buffer with a pH
equal to 5.000. Let x represent the concentration of CH₂COO in the water after the addition of CH₂COONa. Fill in the ICE
table with the appropriate value for each involved species to determine concentrations of all reactants and products.
CH₂COOH(aq)
Initial (M)
Change (M)
Equilibrium (M)
1.0 × 10¹5
x + 1.0 x 10-5
1
0
-1.0 × 10.5
x-1.0 x 10-5
X
1.8 × 105
x + 1.8 x 10-5
+
0.200
2
H₂O(1)
-1.8 × 10-5
x-1.8 x 10-5
5.00
x + 5.00
-5.00
3
H,O*(aq)
x - 5.00
1.0 × 10¹⁹
x + 1.0 × 10-9
+
CH₂COO (aq)
RESET
-1.0 × 10¹⁹
x-1.0 × 10-⁹
Determine the quantity of sodium acetate (CH₂COONa) needed to create buffer solution at a
particular pH. Do this by constructing an ICE table, writing the equilibrium constant expression, and
using this information to determine the mass of starting material required. The value of Ka for
CH₂COOH is 1.8 × 105. Complete Parts 1-3 before submitting your answer.
PREV
[0]
1
[x - 5.00]
Based on your ICE table (Part 1) and the definition of Ka, set up the expression for Ka in order to determine the unknown.
Each reaction participant must be represented by one tile. Do not combine terms.
[500.0]
[x + 1.0 x 10-⁹]
Ka
[0.200]
[x - 1.0 × 10-⁹]
[5.00]
2
[x+1.0 x 10-5]
[1.0 × 10⁹]
[x - 1.0 x 10-5]
=
1.8 × 10-5
[1.0 × 105]
3
[x + 1.8 x 10-5]
[1.8 × 105]
[x - 1.8 x 10-5]
RESET
NEXT >
[x+ 5.00]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa91f799b-1b33-41a5-8f4e-af83231854b4%2F54df374a-1f85-4b39-9537-cbc19b7f90bc%2Fafl07qo_processed.png&w=3840&q=75)
Transcribed Image Text:Determine the quantity of sodium acetate (CH₂COONa) needed to create buffer solution at a
particular pH. Do this by constructing an ICE table, writing the equilibrium constant expression, and
using this information to determine the mass of starting material required. The value of Ka for
CH₂COOH is 1.8 × 105. Complete Parts 1-3 before submitting your answer.
NEXT
>
Sodium acetate (CH₂COONa) is added to an existing 500.0 mL solution of 0.200 M CH₂COOH to form a buffer with a pH
equal to 5.000. Let x represent the concentration of CH₂COO in the water after the addition of CH₂COONa. Fill in the ICE
table with the appropriate value for each involved species to determine concentrations of all reactants and products.
CH₂COOH(aq)
Initial (M)
Change (M)
Equilibrium (M)
1.0 × 10¹5
x + 1.0 x 10-5
1
0
-1.0 × 10.5
x-1.0 x 10-5
X
1.8 × 105
x + 1.8 x 10-5
+
0.200
2
H₂O(1)
-1.8 × 10-5
x-1.8 x 10-5
5.00
x + 5.00
-5.00
3
H,O*(aq)
x - 5.00
1.0 × 10¹⁹
x + 1.0 × 10-9
+
CH₂COO (aq)
RESET
-1.0 × 10¹⁹
x-1.0 × 10-⁹
Determine the quantity of sodium acetate (CH₂COONa) needed to create buffer solution at a
particular pH. Do this by constructing an ICE table, writing the equilibrium constant expression, and
using this information to determine the mass of starting material required. The value of Ka for
CH₂COOH is 1.8 × 105. Complete Parts 1-3 before submitting your answer.
PREV
[0]
1
[x - 5.00]
Based on your ICE table (Part 1) and the definition of Ka, set up the expression for Ka in order to determine the unknown.
Each reaction participant must be represented by one tile. Do not combine terms.
[500.0]
[x + 1.0 x 10-⁹]
Ka
[0.200]
[x - 1.0 × 10-⁹]
[5.00]
2
[x+1.0 x 10-5]
[1.0 × 10⁹]
[x - 1.0 x 10-5]
=
1.8 × 10-5
[1.0 × 105]
3
[x + 1.8 x 10-5]
[1.8 × 105]
[x - 1.8 x 10-5]
RESET
NEXT >
[x+ 5.00]
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