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Find pKa of unkown acid
Find identitiy of unkown acid
83 Lab 11: Analysis of an...
I am looking for help with just trial one. I am not sure what equations to use or how to go about even answering these questions. I figure if I can get help with trial 1 I should be able to do trial 2...
I am looking for help with just trial one. I am not sure what
equations to use or how to go about even answering these questions.
I figure if I can get help with trial 1 I should be able to do
trial 2 on my own.
( This week has been really bad, I lost my grandfather, so if you
could "dumb" down the steps as much as possible I would appreciate
it, my brain is just not working...
Follow up questions 01. Find the accepted values for the pKa and Ka of acetic acid....
Follow up questions 01. Find the accepted values for the pKa and Ka of acetic acid. How well do the accepted values compare with your calculated values? Explain. Lab 7 Determining Ka by the Half-Titration of a Weak Acid 1. Data table Titration Results NaOH volume at equivalence point NaOH volume at half equivalence point pH at the equivalence point pH at half equivalence point pKa of acetic acid Ka of acetic acid Trial 1 22.72 11.36 7.63 Trial2 23.26...
3) A weak monoprotic acid has a pKa 6.15. 50.00 mL of an 0.1250M aqueous solution...
3) A weak monoprotic acid has a pKa 6.15. 50.00 mL of an 0.1250M aqueous solution of this weak acid is titrated with 0.1000M NaOH. a) What is the equivalence point volume and 2 equivalence point volume for this titration? Find the pH b) before the titration begins; c) after 20.00 mL of the NAOH has been added, d) after 62.50 mL of the NaOH has been added; and e) after 85.00 mL of the NAOH has been added. 4)...
calculations for: concentration of the unknown acid and values for pKa and Ka. Part E: pH...
calculations for:
concentration of the unknown acid and values for pKa and
Ka.
Part E: pH pH pH pH Average Volume Trial 1 Trial 2 Trial 3 5.0 0 5 5.0। 5.1 .0 । 5.1 5.1 5.2 5.3 [5.0। 5.1 5.1 5.1 5.2 5.3 [5.2 5.3 5.3 5.4 5.5 16. 16.5 17.0 | 17.5। 18.0 18.5 19.0 19.5 | 20.0 20.5 21.0 | 21.5 | 22.0 22.5 23.0 23.5 24.0 24.5 | 5.6 5.7 [5.3 [5.4 | 5.5 | 5.6...
Data and Observations I. Determining the Unknown Acid Sample Size CvOt0ni aid identification code...
Data and Observations I. Determining the Unknown Acid Sample Size CvOt0ni aid identification code of unknown weak acid concentration of NaOH solution, M mass of weighing paper plus unknown acid, g mass of weighing paper, g final buret reading, mL initial buret reading, mL 2.0506M 2.0 Ill. Titrating the Unknown Acid identification code of unknown weak acid concentration of NaOH solution, M 500M determination 1 determination 2 LGS G mass of weighing paper plus unknown acid, g mass of weighing...
Titration of a weak acid (CH3COOH) and strong base (NaOH), the molarity of NaOH after titration...
Titration of a weak acid (CH3COOH) and strong base (NaOH), the
molarity of NaOH after titration = 0.167 M, I need help answering
to the blanks (Volume of base @ 1/2 equivalence point, pH @ 1/2
equivalence point, and pKa of the acid) on the following data
table,
11. Fill in the table below. Molarity of Acid 0.1204 M Volume of Acid 25.00 ml Volume of Base 17.959 ml Volume of Base @ 12 Equivalence Point pH @ 72 Equivalence...
DAY_ _INS LABORATORY REPORT FOR Part I Standardization of NaOH Trial 1 Weight of bottle +...
DAY_ _INS LABORATORY REPORT FOR Part I Standardization of NaOH Trial 1 Weight of bottle + "KHP" 21.5350 Weight of bottle 20.7995 Weight of "KHP" used 0.8055 Equiv. Volume of NaOH from plot 3125 Equivalence Volume of NaOH 3125 (Equiv. Volume NaOH from plot minus initial volume NaOH) Molarity of NaOH 0.126 Average Molarity 0.126 M Part II - Titration of a Weak Acid Unknown weak acid code Trial 1 Trial 2 Volume of unknown acid 25.00 Equiv. Volume of...
It's a weak acid strong base titration Experiment 4: Identification of an unknown acid by titration...
It's a weak acid strong base titration
Experiment 4: Identification of an unknown acid by titration Page 2 of 15 Background In this experiment, you will use both qualitative and quantitative properties to determine an unknown acid's identity and concentration. To do this analysis, you will perform a titration of your unknown acid sample-specifically a potentiometric titration where you use a pH meter and record pH values during the titration, combined with a visual titration using a color indi- cator...
If the pH at the equivalence point for titration of a monoprotic weak acid with NaOH...
If the pH at the equivalence point for titration of a monoprotic weak acid with NaOH is 9.00, and 10 mL of base is required to reach the equivalence point, how would you determine the pKa of the acid? the pKa is 9.00 determine the pH after 5 mL of base is added; this is the pKa determine the pH when 20 mL of base is added; this is the pKa the pKa is -log(9)
a) Use this plot to estimate the volume of NaOH required to reach the equivalence point...
a) Use this plot to estimate the volume of NaOH
required to reach the equivalence point of each titration
curve.
b) Estimate the original concentration of weak acid in
solution before strong base was added.
c) Find the midpoint pH for each of the trials using
half the volume of NaOH required to reach the equivalence point for
that trial. Check if this pH is at the most flat part of the
titration curve. This is the pKa of the...
I am looking for help with just trial one. I am not sure what
equations to use or how to go about even answering these questions.
I figure if I can get help with trial 1 I should be able to do
trial 2 on my own.
( This week has been really bad, I lost my grandfather, so if you
could "dumb" down the steps as much as possible I would appreciate
it, my brain is just not working...
Follow up questions 01. Find the accepted values for the pKa and Ka of acetic acid. How well do the accepted values compare with your calculated values? Explain. Lab 7 Determining Ka by the Half-Titration of a Weak Acid 1. Data table Titration Results NaOH volume at equivalence point NaOH volume at half equivalence point pH at the equivalence point pH at half equivalence point pKa of acetic acid Ka of acetic acid Trial 1 22.72 11.36 7.63 Trial2 23.26...
3) A weak monoprotic acid has a pKa 6.15. 50.00 mL of an 0.1250M aqueous solution of this weak acid is titrated with 0.1000M NaOH. a) What is the equivalence point volume and 2 equivalence point volume for this titration? Find the pH b) before the titration begins; c) after 20.00 mL of the NAOH has been added, d) after 62.50 mL of the NaOH has been added; and e) after 85.00 mL of the NAOH has been added. 4)...
calculations for:
concentration of the unknown acid and values for pKa and
Ka.
Part E: pH pH pH pH Average Volume Trial 1 Trial 2 Trial 3 5.0 0 5 5.0। 5.1 .0 । 5.1 5.1 5.2 5.3 [5.0। 5.1 5.1 5.1 5.2 5.3 [5.2 5.3 5.3 5.4 5.5 16. 16.5 17.0 | 17.5। 18.0 18.5 19.0 19.5 | 20.0 20.5 21.0 | 21.5 | 22.0 22.5 23.0 23.5 24.0 24.5 | 5.6 5.7 [5.3 [5.4 | 5.5 | 5.6...
Data and Observations I. Determining the Unknown Acid Sample Size CvOt0ni aid identification code of unknown weak acid concentration of NaOH solution, M mass of weighing paper plus unknown acid, g mass of weighing paper, g final buret reading, mL initial buret reading, mL 2.0506M 2.0 Ill. Titrating the Unknown Acid identification code of unknown weak acid concentration of NaOH solution, M 500M determination 1 determination 2 LGS G mass of weighing paper plus unknown acid, g mass of weighing...
Titration of a weak acid (CH3COOH) and strong base (NaOH), the
molarity of NaOH after titration = 0.167 M, I need help answering
to the blanks (Volume of base @ 1/2 equivalence point, pH @ 1/2
equivalence point, and pKa of the acid) on the following data
table,
11. Fill in the table below. Molarity of Acid 0.1204 M Volume of Acid 25.00 ml Volume of Base 17.959 ml Volume of Base @ 12 Equivalence Point pH @ 72 Equivalence...
DAY_ _INS LABORATORY REPORT FOR Part I Standardization of NaOH Trial 1 Weight of bottle + "KHP" 21.5350 Weight of bottle 20.7995 Weight of "KHP" used 0.8055 Equiv. Volume of NaOH from plot 3125 Equivalence Volume of NaOH 3125 (Equiv. Volume NaOH from plot minus initial volume NaOH) Molarity of NaOH 0.126 Average Molarity 0.126 M Part II - Titration of a Weak Acid Unknown weak acid code Trial 1 Trial 2 Volume of unknown acid 25.00 Equiv. Volume of...
It's a weak acid strong base titration
Experiment 4: Identification of an unknown acid by titration Page 2 of 15 Background In this experiment, you will use both qualitative and quantitative properties to determine an unknown acid's identity and concentration. To do this analysis, you will perform a titration of your unknown acid sample-specifically a potentiometric titration where you use a pH meter and record pH values during the titration, combined with a visual titration using a color indi- cator...
a) Use this plot to estimate the volume of NaOH
required to reach the equivalence point of each titration
curve.
b) Estimate the original concentration of weak acid in
solution before strong base was added.
c) Find the midpoint pH for each of the trials using
half the volume of NaOH required to reach the equivalence point for
that trial. Check if this pH is at the most flat part of the
titration curve. This is the pKa of the...
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