Chemistry Titrations
The student titrates 20.0 mL of the weak acid with 0.300 M sodium hydroxide, NaOH(aq). When 5.00 mL of NaOH(aq) has been delivered the pH of the weak acid is 5.328. i 5 ptsDetermine the [H3O+]. ii 6pts. Determine the Ka of the weak acid. c. The student continues to titrate the weak acid to equivalence. 5 pts i. What volume of NaOH(aq) is required to reach the equivalence point with the weak acid? 5 pts iiWhat species (NaOH, HA, Na+ OH-, H+, A-) are present at the equivalence point and in what relative concentrations? 5 pts iiiWhat is the pH at the equivalence point?
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A thorough explanation would sure be appreciated!!!! Thank you!! Acid-Base Chemistry: Unknown Acid Analysis (in two...
A thorough explanation would sure be appreciated!!!!
Thank you!!
Acid-Base Chemistry: Unknown Acid Analysis (in two experiments) Introduction In this experiment you will titrate a monoprotic weak acid with a strong ak acid with a strong base in the nd using a pH meter (Exp 2). An analysis of concentration and molar mass of the the titration data will allow you to determine the concentration and more unknown acid (Exp 1) and the ionization constant Ka (Exp 2). At the...
The half‑equivalence point of a titration occurs half way to the equivalence point, where half of...
The half‑equivalence point of a titration occurs half way to the
equivalence point, where half of the analyze has reacted to form
its conjugate, and the other half still remains unreacted.
If 0.4400.440 moles of a monoprotic weak acid
(?a=7.2×10−5)(Ka=7.2×10−5) is titrated with NaOH,NaOH, what is the
pH of the solution at the half‑equivalence point?
pH=pH=
2)
A volume of 500.0 mL500.0 mL of 0.120 M0.120 M NaOHNaOH is added
to 565 mL565 mL of 0.250 M0.250 M weak acid...
ssume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to...
ssume you dissolve 0.235 g of the weak acid benzoic acid,
C6H5CO2H, in enough water to make
7.00 ✕ 102 mL of solution and then titrate the solution
with 0.133 M NaOH.
C6H5CO2H(aq) +
OH-(aq)
C6H5CO2-(aq) +
H2O(ℓ)
What are the concentrations of the following ions at the
equivalence point?
Na+, H3O+,
OH-
C6H5CO2-
_____M Na+
_____M H3O+
_____M OH-
_____M
C6H5CO2-
What is the pH of the solution?
_____
Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to...
Assume you dissolve 0.235 g of the weak acid benzoic acid,
C6H5CO2H, in enough water to make
2.00 ✕ 102 mL of solution and then titrate the solution
with 0.143 M NaOH.
C6H5CO2H(aq) + OH-(aq)
C6H5CO2-(aq) +
H2O(ℓ)
What are the concentrations of the following ions at the
equivalence point?
Na+,
H3O+, OH-
C6H5CO2-
M Na+
M H3O+
M OH-
M
C6H5CO2-
What is the pH of the solution?
Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to...
Assume you dissolve 0.235 g of the weak acid benzoic acid,
C6H5CO2H, in enough water to make
3.00 ✕ 102 mL of solution and then titrate the solution
with 0.163 M NaOH.
C6H5CO2H(aq) + OH-(aq)
C6H5CO2-(aq) +
H2O(ℓ)
What are the concentrations of the following ions at the
equivalence point?
Na+,
H3O+, OH-
C6H5CO2-
M Na+
M H3O+
M OH-
M
C6H5CO2-
What is the pH of the solution?
Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to...
Assume you dissolve 0.235 g of the weak acid benzoic acid,
C6H5CO2H, in enough water to make
1.00 ✕ 102 mL of solution and then titrate the solution
with 0.128 M NaOH.
C6H5CO2H(aq) + OH-(aq)
C6H5CO2-(aq) +
H2O(ℓ)
What are the concentrations of the following ions at the
equivalence point?
Na+,
H3O+, OH-
C6H5CO2-
_____M Na+
______ M H3O+
_____M OH-
______M
C6H5CO2-
What is the pH of the solution? _________
A student peforms a titration, titrating 25.00 mL of a weak monoprotic acid, HA, with a...
A student peforms a titration, titrating 25.00 mL of a weak monoprotic acid, HA, with a 1.22 M solution of NaOH. They collect data, plot a titration curve and determine the values given in the below table. ml NaOH added pH Half-way Point 18.34 4.06 Equivalence point 36.68 8.84 How many moles of NaOH have been added at the equivalence point? mol What is the total volume of the solution at the equivalence point? mL During the titration the following...
Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to...
Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to make 5.00 ✕ 102 mL of solution and then titrate the solution with 0.128 M NaOH. C6H5CO2H(aq) + OH-(aq) C6H5CO2-(aq) + H2O(ℓ) What are the concentrations of the following ions at the equivalence point? Na+, H3O+, OH- C6H5CO2- _____ M Na+ _____ M H3O+ _____ M OH- _____ M C6H5CO2- What is the pH of the solution? pH = please help if you can...
Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to...
Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to make 8.00 ✕ 10^2 mL of solution and then titrate the solution with 0.158 M NaOH. C6H5CO2H(aq) + OH-(aq) C6H5CO2-(aq) + H2O(ℓ) What are the concentrations of the following ions at the equivalence point? Na+, H3O+, OH- C6H5CO2- M Na+ M H3O+ M OH- M C6H5CO2- What is the pH of the solution?
Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to...
Assume you dissolve 0.235 g of the weak acid benzoic acid,
C6H5CO2H, in enough water to make
9.00e2 mL of solution and then titrate the solution with
0.138 M NaOH.
C6H5CO2H(aq) + OH-(aq)
C6H5CO2-(aq) +
H2O(ℓ)
What are the concentrations of the following ions at the
equivalence point?
_____ M Na+
_____ M H3O+
_____ M OH-
______ M
C6H5CO2-
What is the pH of the solution?
A thorough explanation would sure be appreciated!!!!
Thank you!!
Acid-Base Chemistry: Unknown Acid Analysis (in two experiments) Introduction In this experiment you will titrate a monoprotic weak acid with a strong ak acid with a strong base in the nd using a pH meter (Exp 2). An analysis of concentration and molar mass of the the titration data will allow you to determine the concentration and more unknown acid (Exp 1) and the ionization constant Ka (Exp 2). At the...
The half‑equivalence point of a titration occurs half way to the
equivalence point, where half of the analyze has reacted to form
its conjugate, and the other half still remains unreacted.
If 0.4400.440 moles of a monoprotic weak acid
(?a=7.2×10−5)(Ka=7.2×10−5) is titrated with NaOH,NaOH, what is the
pH of the solution at the half‑equivalence point?
pH=pH=
2)
A volume of 500.0 mL500.0 mL of 0.120 M0.120 M NaOHNaOH is added
to 565 mL565 mL of 0.250 M0.250 M weak acid...
ssume you dissolve 0.235 g of the weak acid benzoic acid,
C6H5CO2H, in enough water to make
7.00 ✕ 102 mL of solution and then titrate the solution
with 0.133 M NaOH.
C6H5CO2H(aq) +
OH-(aq)
C6H5CO2-(aq) +
H2O(ℓ)
What are the concentrations of the following ions at the
equivalence point?
Na+, H3O+,
OH-
C6H5CO2-
_____M Na+
_____M H3O+
_____M OH-
_____M
C6H5CO2-
What is the pH of the solution?
_____
Assume you dissolve 0.235 g of the weak acid benzoic acid,
C6H5CO2H, in enough water to make
2.00 ✕ 102 mL of solution and then titrate the solution
with 0.143 M NaOH.
C6H5CO2H(aq) + OH-(aq)
C6H5CO2-(aq) +
H2O(ℓ)
What are the concentrations of the following ions at the
equivalence point?
Na+,
H3O+, OH-
C6H5CO2-
M Na+
M H3O+
M OH-
M
C6H5CO2-
What is the pH of the solution?
Assume you dissolve 0.235 g of the weak acid benzoic acid,
C6H5CO2H, in enough water to make
3.00 ✕ 102 mL of solution and then titrate the solution
with 0.163 M NaOH.
C6H5CO2H(aq) + OH-(aq)
C6H5CO2-(aq) +
H2O(ℓ)
What are the concentrations of the following ions at the
equivalence point?
Na+,
H3O+, OH-
C6H5CO2-
M Na+
M H3O+
M OH-
M
C6H5CO2-
What is the pH of the solution?
Assume you dissolve 0.235 g of the weak acid benzoic acid,
C6H5CO2H, in enough water to make
1.00 ✕ 102 mL of solution and then titrate the solution
with 0.128 M NaOH.
C6H5CO2H(aq) + OH-(aq)
C6H5CO2-(aq) +
H2O(ℓ)
What are the concentrations of the following ions at the
equivalence point?
Na+,
H3O+, OH-
C6H5CO2-
_____M Na+
______ M H3O+
_____M OH-
______M
C6H5CO2-
What is the pH of the solution? _________
Assume you dissolve 0.235 g of the weak acid benzoic acid,
C6H5CO2H, in enough water to make
9.00e2 mL of solution and then titrate the solution with
0.138 M NaOH.
C6H5CO2H(aq) + OH-(aq)
C6H5CO2-(aq) +
H2O(ℓ)
What are the concentrations of the following ions at the
equivalence point?
_____ M Na+
_____ M H3O+
_____ M OH-
______ M
C6H5CO2-
What is the pH of the solution?
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