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A 10.00mL sample of 0.1000M an acid...
Hi, I need help with this question, I'm struggling to find the pH and the two...
Hi, I need help with this question, I'm struggling to find the
pH and the two equivalence points. thank you!
A 10.00mL sample of 0.1000M an acid (pK a1 = 2.89; PK 22 = 5.51) was titated with 0.1526M NaOH. Sketch the graph of pH versus V NaOH for the titration of this acid through the addition of 25.00mL of NaOH. (3 points) Indicate the numerical pH values for the initial (i.e. before addition of NaOH), half-equivalence, and equivalence points;...
Question 2 (20pts): A 20 mL sample of 0.01 M propionic acid (CHsCH2COOH; Pk 4.87) is titrated with 0.05 M NaOH A) W...
Question 2 (20pts): A 20 mL sample of 0.01 M propionic acid (CHsCH2COOH; Pk 4.87) is titrated with 0.05 M NaOH A) Write out the chemical reaction for this titration. B) Calculate the initial pH of the sample. C) Calculate the volume of NaOH required to reach the equivalence point. D) Calculate the pH of the solution at the equivalence point. E) Sketch a titration curve for this titration (pH versus volume NaOH added). Note the Jocation of the equivalence...
Titration of 100.00mL of a 0.1000M solution of a strong acid HCl with 0.100M NaOH solution. Determine the pH at the fol...
Titration of 100.00mL of a 0.1000M solution of a strong acid HCl with 0.100M NaOH solution. Determine the pH at the following points and sketch curve a) before addition of NaOH c) after addition of 20.0 ml NaOH e) after addition of 50.Oml NaOH e) after addition of 100 ml NaOH b) after addition of 10.0mL. NaOH d) after addition of 30.0 ml NaOH f) after addition of 80.Oml NaOH h) after addition of 110 ml NaOH Titration of 100...
Titration of 100.00mL of a 0.1000M solution of a weak acid HA (K=1.80x105) with 0.100M NaOH...
Titration of 100.00mL of a 0.1000M solution of a weak acid HA (K=1.80x105) with 0.100M NaOH solution. Using our knowledge of how weak acids react with strong bases, determine the pH at the following points. a) before addition of NaOH c) after addition of 20.0 ml NaOH e) after addition of 50.Oml NaOH b) after addition of 100 ml NaOH b) after addition of 10.0ml NaOH d) after addition of 30.0 ml NaOH f) after addition of 80.Oml NaOH h)...
Question 2 (20pts): A 20 mL sample of 0.01 M propionic acid (CH3CH2COOH; Pka = 4.87)...
Question 2 (20pts): A 20 mL sample of 0.01 M propionic acid (CH3CH2COOH; Pka = 4.87) is titrated with 0.05 M NaOH. A) Write out the chemical reaction for this titration. B) Calculate the initial pH of the sample. C) Calculate the volume of NaOH required to reach the equivalence point. D) Calculate the pH of the solution at the equivalence point. E) Sketch a titration curve for this titration (pH versus volume NaOH added). Note the location of the...
Question 1 5 pts If 27.2 mL of 0.102 M acid with a pKg of 5.44...
Question 1 5 pts If 27.2 mL of 0.102 M acid with a pKg of 5.44 is titrated with 0.1 M NaOH solution, what is the pH of the titration mixture after 11.3 mL of base solution is added? 5 pts Question 2 If 20.7 mL of 0. 102 M acid with a pKa 4.33 is titrated with 0.107 M NAOH solution, what is the pH of the acid solution before any base solution is added? Question 3 5 pts...
A 20 mL sample of 0.01 M propionic acid (CH3CH2COOH; Pka = 4.87) is titrated with...
A 20 mL sample of 0.01 M propionic acid (CH3CH2COOH; Pka = 4.87) is titrated with 0.05 M NaOH. A) Write out the chemical reaction for this titration. B) Calculate the initial pH of the sample. C) Calculate the volume of NaOH required to reach the equivalence point. D) Calculate the pH of the solution at the equivalence point. E) Sketch a titration curve for this titration (pH versus volume NaOH added). Note the location of the equivalence point on...
The data for the titration of 25.00 mL of Unknown Acid Sample #80 with 0.1508 M...
The data for the titration of 25.00 mL of Unknown Acid
Sample #80 with 0.1508 M NaOH (aq) was
plotted on the graph below.
To help with your analysis we have summarized some of the key
numerical values that were determined from the original data -
using the methods on Page 13 of your lab manual to graphically
determine the equivalence point.
Unknown #27
Volume of NaOH added at the potentiometric endpoint (mL)
21.25 mL
Volume of NaOH added at...
thank you In the lecture we used titration of sodium carbonate with hydrochloric acid as an example to explain how t...
thank you
In the lecture we used titration of sodium carbonate with hydrochloric acid as an example to explain how to titrate a weak base with a strong acid. Suppose that you are using HNO3 to titrate Na3PO4, describe how to calculate pH at following different titration stages: (a) before titration (b) at 19 equivalence point (c) at 3rd equivalence point (d) between 2nd and 3rd equivalence points (e) after 3rd equivalence point Calculation is not required, simply write the...
Hello! please help me! need to know the answers to see If I’m right before i...
Hello! please help me! need to know the answers to see If I’m
right before i turn this in :)
Download the graphing paper posted on Moodle under COURSE MATERIALS/Handouts. Plots utilizing free-hand sketched and/or not-to-scale axes will not be graded. Period. Consider a titration of a 25.00 mL propionic acid solution [KCH COOH) = 1.3x10-1 with 0.1093 M solution of sodium hydroxide. The volume of 23.56 mL of NaOH(aq) solution was needed to reach the equivalence point. Calculate (SHOW...
Hi, I need help with this question, I'm struggling to find the
pH and the two equivalence points. thank you!
A 10.00mL sample of 0.1000M an acid (pK a1 = 2.89; PK 22 = 5.51) was titated with 0.1526M NaOH. Sketch the graph of pH versus V NaOH for the titration of this acid through the addition of 25.00mL of NaOH. (3 points) Indicate the numerical pH values for the initial (i.e. before addition of NaOH), half-equivalence, and equivalence points;...
Question 2 (20pts): A 20 mL sample of 0.01 M propionic acid (CHsCH2COOH; Pk 4.87) is titrated with 0.05 M NaOH A) Write out the chemical reaction for this titration. B) Calculate the initial pH of the sample. C) Calculate the volume of NaOH required to reach the equivalence point. D) Calculate the pH of the solution at the equivalence point. E) Sketch a titration curve for this titration (pH versus volume NaOH added). Note the Jocation of the equivalence...
Titration of 100.00mL of a 0.1000M solution of a strong acid HCl with 0.100M NaOH solution. Determine the pH at the following points and sketch curve a) before addition of NaOH c) after addition of 20.0 ml NaOH e) after addition of 50.Oml NaOH e) after addition of 100 ml NaOH b) after addition of 10.0mL. NaOH d) after addition of 30.0 ml NaOH f) after addition of 80.Oml NaOH h) after addition of 110 ml NaOH Titration of 100...
Titration of 100.00mL of a 0.1000M solution of a weak acid HA (K=1.80x105) with 0.100M NaOH solution. Using our knowledge of how weak acids react with strong bases, determine the pH at the following points. a) before addition of NaOH c) after addition of 20.0 ml NaOH e) after addition of 50.Oml NaOH b) after addition of 100 ml NaOH b) after addition of 10.0ml NaOH d) after addition of 30.0 ml NaOH f) after addition of 80.Oml NaOH h)...
Question 2 (20pts): A 20 mL sample of 0.01 M propionic acid (CH3CH2COOH; Pka = 4.87) is titrated with 0.05 M NaOH. A) Write out the chemical reaction for this titration. B) Calculate the initial pH of the sample. C) Calculate the volume of NaOH required to reach the equivalence point. D) Calculate the pH of the solution at the equivalence point. E) Sketch a titration curve for this titration (pH versus volume NaOH added). Note the location of the...
Question 1 5 pts If 27.2 mL of 0.102 M acid with a pKg of 5.44 is titrated with 0.1 M NaOH solution, what is the pH of the titration mixture after 11.3 mL of base solution is added? 5 pts Question 2 If 20.7 mL of 0. 102 M acid with a pKa 4.33 is titrated with 0.107 M NAOH solution, what is the pH of the acid solution before any base solution is added? Question 3 5 pts...
The data for the titration of 25.00 mL of Unknown Acid
Sample #80 with 0.1508 M NaOH (aq) was
plotted on the graph below.
To help with your analysis we have summarized some of the key
numerical values that were determined from the original data -
using the methods on Page 13 of your lab manual to graphically
determine the equivalence point.
Unknown #27
Volume of NaOH added at the potentiometric endpoint (mL)
21.25 mL
Volume of NaOH added at...
thank you
In the lecture we used titration of sodium carbonate with hydrochloric acid as an example to explain how to titrate a weak base with a strong acid. Suppose that you are using HNO3 to titrate Na3PO4, describe how to calculate pH at following different titration stages: (a) before titration (b) at 19 equivalence point (c) at 3rd equivalence point (d) between 2nd and 3rd equivalence points (e) after 3rd equivalence point Calculation is not required, simply write the...
Hello! please help me! need to know the answers to see If I’m
right before i turn this in :)
Download the graphing paper posted on Moodle under COURSE MATERIALS/Handouts. Plots utilizing free-hand sketched and/or not-to-scale axes will not be graded. Period. Consider a titration of a 25.00 mL propionic acid solution [KCH COOH) = 1.3x10-1 with 0.1093 M solution of sodium hydroxide. The volume of 23.56 mL of NaOH(aq) solution was needed to reach the equivalence point. Calculate (SHOW...
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Amplitude=3;
fs=8000;
n=0:399;
t=0:1/fs: n*1/fs-1/fs;
signal=3+3*cos(2*pi*1100*t)+3*cos(2*pi*2200*t)+3*cos(2*pi*3300*t);
fftSignal= fft(signal);
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xlabel('Frequency(Hz)’)
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