![Formula: pH = pka1 + log (conjugate base]/ [acid] Conjugate base = 0.6 meq Acid = 1.4 meq 2.5 = pka1 + log [0.6]/[1.4] 2.5 =](http://img.homeworklib.com/questions/4995ef70-7119-11ea-b28f-31ccfb03f500.png?x-oss-process=image/resize,w_560)
![Formula: pH = pka2 + log (conjugate base]/[acid] Conjugate base = 1.7 meq Acid = 0.3 meq 9.4 = pka2 + log (1.7]/[0.3] 9.4 = p](http://img.homeworklib.com/questions/4a7b4b00-7119-11ea-8adc-595416abf62f.png?x-oss-process=image/resize,w_560)
Homework Answers
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Could you help me to discuss this data and what conclusion can we
make? Thank you...
1 . If a buffer solution is 0.260 M in a weak acid (?a=8.3×10−5)and 0.480 M in its conjugate base, what is the pH? pH= 2...
1 . If a buffer solution is 0.260 M in a weak acid (?a=8.3×10−5)and 0.480 M in its conjugate base, what is the pH? pH= 2. If a buffer solution is 0.200 M in a weak base (?b=5.0×10−5) and 0.530 M in its conjugate acid, what is the ph 3. Phosphoric acid is a triprotic acid (?a1=6.9×10−3, ?a2=6.2×10−8 , and ?a3=4.8×10−13 To find the pH of a buffer composed of H2PO4 - (aq) ) and HPO4 2− (aq) , which...
Pls help on filling out Tritraion of a Polyprotic acid chart Data from lab Titration #1...
Pls help on filling out Tritraion of a Polyprotic acid chart
Data from lab
Titration #1
Titration #2
Titration #3
mL base added
pH
mL base added
pH
mL base added
pH
1
0.7
1
0.7
1
0.7
2
1.1
2
1
2
0.9
3
1.5
3
1.4
3
1.3
4
1.7
4
1.6
4
1.5
5
1.9
5
1.8
5
1.7
6
2
6
2.1
6
2
7
2.2
7
2.2
7
2.2
8
2.4
8
2.3
8
2.2...
Can someone help me get my data for parts B and C of my lab report?...
Can someone help me get my data for parts B and C of
my lab report? i think I may understand part B, butpart C has me at
a loss. Thank you
TORY DETERNATION OR FORWARD TABLE 8.3 1st Determination 2nd Determination 3rd Determination volume at equivalence point volume at hall equivalence point k (acid equilibrium constant) average standard deviation C. CONCENTRATION OF THE UNKNOWN ACID TABLE 8.4 Trial 3 Trial 1 Trial volume of unknown acid average molarity of...
Could you please help me with 1) and 3)! A 25.0 mL sample of an unknown acid in water is titrated with 0.1 MNaOH (aq) an...
Could you please help me with
1) and 3)!
A 25.0 mL sample of an unknown acid in water is titrated with 0.1 MNaOH (aq) and resulted in the following data. Note: phenolphthalein indicator and a pH probe were used to monitor pH Volume (mL) 0.1 M NaoH obse pH Observed colour 3.15 3.56 2.5 3.96 4.43 7.5 8.16 10 12.5 11.32 12.09 15.0 17.5 12.37 20.0 12.61 22.5 12.81 25.0 12.86 12.89 27.5 12.91 30.0 Based on the data...
Answer the questions using the data and graph. please show all work. Thank you Titration of...
Answer the questions using the data and graph. please show all
work. Thank you
Titration of Hydrochloric Acid: 1) Use the buret that is located near the hydrochloric acid container to dispense 25.00 mL of hydrochloric acid solution into a clean dry 100 mL beaker. Record the molarity of this solution on your data sheet. 2) Check to make sure that the volume on your sodium hydroxide buret reads 0.00 mL. If it does not read 0.00 mL, adjust it...
can someone help me answer these 5 questions and figire this graph out please? Acid-Base Titration...
can
someone help me answer these 5 questions and figire this graph out
please?
Acid-Base Titration of a Weak Acid with a Strong Base: Determination of K. Introduction: You will be titrating a solution of a weak acid with 0.100 M NaOH, while monitoring the reaction using a pH meter. Weak acids have characteristic acid-ionization constants, K. The purpose of this lab is to use the titration to determine the value of this constant for the weak acid called “benzoic...
I dont know if i did this correctly and i hope someone can help me. *COULD YOU CHECK THE DATA TAB...
i dont know if i did this correctly and i hope someone
can help me.
*COULD YOU CHECK THE DATA TABLE AND ANSWER THE 2 QUESTIONS
BELOW*
1. write the net ionic equation for neutralization of
HCL by the buffer?
2. write the net ionic equation for neutralization of NaOH by the
buffer.
Buffer: 0.080 M Acid/0.040 M Conjugate Base Formula ofsolid Bronsted acid Natt (eg Mass of acid required to prepare 100 mL of 0.080 M solution 672 Calculations...
please help me fill in the rest of the data table for this lab on Determination...
please help me fill in the rest of the data table for this lab on
Determination of the pKa and equivalent weight of a weak acid
(monoprotic acid). i dont know how to find the equivalent weight
and Ka.
Vid 9/1 ml= 0.09970/ CHMISTRY 127 Determination of the pK, and Equivalent Weight of a Weak Acid (Monoprotic Acid) Part Data Sheet Trial 1 Trial 2 Trial 3 UNKNOWN ACID No. = 25.00ml Vaak wid = 25 ml = 0.025 L...
please help me with 3,4,5 Thank you! 3. Which sample had more moles of HA in...
please help me with 3,4,5
Thank you!
3. Which sample had more moles of HA in it initially? Give reas on ! 4. Do the prelab calculation found in part IIIA below 5. Calculate the (expected) initial concentration of your acid solution (see Part IIIB below to get the initial volume of your acid solution) Acid 2 0 50 40 30 0 10 20 Volume of titrant (base) added (mL) III. Experimental Information and Procedures A.Background and preliminary calculation. You...
help me! please i will rate you wirh a big thumbs up! Goud to CAT CATEGORY...
help me! please i will rate you wirh a big thumbs up!
Goud to CAT CATEGORY A SS BACK TYTRATION N 13-20_43.81 SOL 3TTE 10 On approximatymarket carbs y heder 250 ml A 300 M othek and w e re complete and the ple company dissolved in my heart beklager with a congredo speed up the pas the solution does not find as do 200 of Anthelio danga p hen their is you in and in base en perso al...
Pls help on filling out Tritraion of a Polyprotic acid chart
Data from lab
Titration #1
Titration #2
Titration #3
mL base added
pH
mL base added
pH
mL base added
pH
1
0.7
1
0.7
1
0.7
2
1.1
2
1
2
0.9
3
1.5
3
1.4
3
1.3
4
1.7
4
1.6
4
1.5
5
1.9
5
1.8
5
1.7
6
2
6
2.1
6
2
7
2.2
7
2.2
7
2.2
8
2.4
8
2.3
8
2.2...
Can someone help me get my data for parts B and C of
my lab report? i think I may understand part B, butpart C has me at
a loss. Thank you
TORY DETERNATION OR FORWARD TABLE 8.3 1st Determination 2nd Determination 3rd Determination volume at equivalence point volume at hall equivalence point k (acid equilibrium constant) average standard deviation C. CONCENTRATION OF THE UNKNOWN ACID TABLE 8.4 Trial 3 Trial 1 Trial volume of unknown acid average molarity of...
Could you please help me with
1) and 3)!
A 25.0 mL sample of an unknown acid in water is titrated with 0.1 MNaOH (aq) and resulted in the following data. Note: phenolphthalein indicator and a pH probe were used to monitor pH Volume (mL) 0.1 M NaoH obse pH Observed colour 3.15 3.56 2.5 3.96 4.43 7.5 8.16 10 12.5 11.32 12.09 15.0 17.5 12.37 20.0 12.61 22.5 12.81 25.0 12.86 12.89 27.5 12.91 30.0 Based on the data...
Answer the questions using the data and graph. please show all
work. Thank you
Titration of Hydrochloric Acid: 1) Use the buret that is located near the hydrochloric acid container to dispense 25.00 mL of hydrochloric acid solution into a clean dry 100 mL beaker. Record the molarity of this solution on your data sheet. 2) Check to make sure that the volume on your sodium hydroxide buret reads 0.00 mL. If it does not read 0.00 mL, adjust it...
can
someone help me answer these 5 questions and figire this graph out
please?
Acid-Base Titration of a Weak Acid with a Strong Base: Determination of K. Introduction: You will be titrating a solution of a weak acid with 0.100 M NaOH, while monitoring the reaction using a pH meter. Weak acids have characteristic acid-ionization constants, K. The purpose of this lab is to use the titration to determine the value of this constant for the weak acid called “benzoic...
i dont know if i did this correctly and i hope someone
can help me.
*COULD YOU CHECK THE DATA TABLE AND ANSWER THE 2 QUESTIONS
BELOW*
1. write the net ionic equation for neutralization of
HCL by the buffer?
2. write the net ionic equation for neutralization of NaOH by the
buffer.
Buffer: 0.080 M Acid/0.040 M Conjugate Base Formula ofsolid Bronsted acid Natt (eg Mass of acid required to prepare 100 mL of 0.080 M solution 672 Calculations...
please help me fill in the rest of the data table for this lab on
Determination of the pKa and equivalent weight of a weak acid
(monoprotic acid). i dont know how to find the equivalent weight
and Ka.
Vid 9/1 ml= 0.09970/ CHMISTRY 127 Determination of the pK, and Equivalent Weight of a Weak Acid (Monoprotic Acid) Part Data Sheet Trial 1 Trial 2 Trial 3 UNKNOWN ACID No. = 25.00ml Vaak wid = 25 ml = 0.025 L...
please help me with 3,4,5
Thank you!
3. Which sample had more moles of HA in it initially? Give reas on ! 4. Do the prelab calculation found in part IIIA below 5. Calculate the (expected) initial concentration of your acid solution (see Part IIIB below to get the initial volume of your acid solution) Acid 2 0 50 40 30 0 10 20 Volume of titrant (base) added (mL) III. Experimental Information and Procedures A.Background and preliminary calculation. You...
help me! please i will rate you wirh a big thumbs up!
Goud to CAT CATEGORY A SS BACK TYTRATION N 13-20_43.81 SOL 3TTE 10 On approximatymarket carbs y heder 250 ml A 300 M othek and w e re complete and the ple company dissolved in my heart beklager with a congredo speed up the pas the solution does not find as do 200 of Anthelio danga p hen their is you in and in base en perso al...
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