ort Sheet 20mL in buret ent: 50:50 water:isopropyl alcohol (v/v) 22 °C perature: Volume of pure t-BuCl sample: ,0OML Initial volume, Vo, of t-BuCl solution: 10mL (3 sig figs.) (3 sig figs.) ulated initial concentration oft-BuCl, [t-BUCI]o: (3 sig figs.) Molarity of NaOH: (0. 25 (3 sig figs.) TIME TOTAL VOLUME OF NAOH ADDED V, NAOH (mL) EXPIRED BURET CALCULATED ME OF DAY In[t-BuCl], (SECONDS) READING [-BuCi), 20ml 21,5mL lo5 mL 22.1mL 2.1mL 22.5mL 2.5mL 22.7mL 2.7mL O sec 0.0 mL :23 240 కె 720 :35 160 1వేర ||40. 1260 23.0mL 3.0mL 40 :42 1380 0 23.2mL 3.2mL
ort Sheet 20mL in buret ent: 50:50 water:isopropyl alcohol (v/v) 22 °C perature: Volume of pure t-BuCl sample: ,0OML Initial volume, Vo, of t-BuCl solution: 10mL (3 sig figs.) (3 sig figs.) ulated initial concentration oft-BuCl, [t-BUCI]o: (3 sig figs.) Molarity of NaOH: (0. 25 (3 sig figs.) TIME TOTAL VOLUME OF NAOH ADDED V, NAOH (mL) EXPIRED BURET CALCULATED ME OF DAY In[t-BuCl], (SECONDS) READING [-BuCi), 20ml 21,5mL lo5 mL 22.1mL 2.1mL 22.5mL 2.5mL 22.7mL 2.7mL O sec 0.0 mL :23 240 కె 720 :35 160 1వేర ||40. 1260 23.0mL 3.0mL 40 :42 1380 0 23.2mL 3.2mL
Chapter31: Introduction To Analytical Separations
Section: Chapter Questions
Problem 31.19QAP
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![Mt
Name
82
Instructor
Pd
Lab Time/Date
LI28 R
ort Sheet
20mL in buret
ent: 50:50 water:isopropyl alcohol (v/v)
22 °C
реrature:
Volume of pure t-BuCl sample: |,00 mL
Initial volume, Vo, of t-BuCl solution: IOmL
(3 sig figs.)
(3 sig figs.)
ulated initial concentration of t-BuCl, [t-BuCl]o:
(3 sig figs.)
Molarity of NaOH: (). 25
(3 sig figs.)
TIME
EXPIRED
(SECONDS)
TOTAL VOLUME
OF NAOH ADDED
V, NAOH (mL)
CALCULATED
BURET
READING
In[t-BuCl],
IME OF DAY
[t-BuC],
19
1:23
1:32
20ml
21.5mL l.5mL
22.lmL2.1mL
22.5mL 2.5mL
22.7ML2.7mL
1260 23.0mL 3.0mL
O sec
0.0 mL
240
720
1:35 960
1140
1:36
li40
1:42 1380 23.2ML3.2mL
1500
1:46 1620 23.6mL 3.6mL
1:44
23,4mL 3.4mL
1680 23. 8mL 3.8mh
23,9mL 3.9mL
1:47
1:49
1800](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5407ea30-1dc6-4393-bdac-fa3faec37927%2Fffe7468b-9dae-4b7a-b082-1e9fe1faa605%2F7a3yxm8_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Mt
Name
82
Instructor
Pd
Lab Time/Date
LI28 R
ort Sheet
20mL in buret
ent: 50:50 water:isopropyl alcohol (v/v)
22 °C
реrature:
Volume of pure t-BuCl sample: |,00 mL
Initial volume, Vo, of t-BuCl solution: IOmL
(3 sig figs.)
(3 sig figs.)
ulated initial concentration of t-BuCl, [t-BuCl]o:
(3 sig figs.)
Molarity of NaOH: (). 25
(3 sig figs.)
TIME
EXPIRED
(SECONDS)
TOTAL VOLUME
OF NAOH ADDED
V, NAOH (mL)
CALCULATED
BURET
READING
In[t-BuCl],
IME OF DAY
[t-BuC],
19
1:23
1:32
20ml
21.5mL l.5mL
22.lmL2.1mL
22.5mL 2.5mL
22.7ML2.7mL
1260 23.0mL 3.0mL
O sec
0.0 mL
240
720
1:35 960
1140
1:36
li40
1:42 1380 23.2ML3.2mL
1500
1:46 1620 23.6mL 3.6mL
1:44
23,4mL 3.4mL
1680 23. 8mL 3.8mh
23,9mL 3.9mL
1:47
1:49
1800
![A. Determination of the first order rate constant, k.
YOUR VALUE
COMPUTER VALUE
Slope of the best straight line from the
plot of In[t-BuCl], versus time:
First order rate constant, k:
(state to 2 sig. figs.)
Calculated half-life, t/2, using your value
of the rate constant:
B. Calculation of the rate of reaction at selected times.
Calculate the rate of the reaction at each time indicated in the table. Express the rate
in units of M/sec. Show the calculation of the 1000 second values.
TIME (IN SECONDS)
[t-BuC1],
RATE,
00 0 0
000
000
C. In addition...
Attach
hand-drawn plot of In[t-BuCl], versus time to the Report Sheet. Also attach
unour
the computer-generated plot. Attach a separate sheet of paper showing:
1. the calculation of the slope and k from your hand-drawn graph;
2. the calculation of the first two (2) values of [t-BuCl], and;
3. the calculation of the half-life.
Be certain all values are stated to the correct number of significant figures and are presented
with correct units.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5407ea30-1dc6-4393-bdac-fa3faec37927%2Fffe7468b-9dae-4b7a-b082-1e9fe1faa605%2Fjt2cnj.jpeg&w=3840&q=75)
Transcribed Image Text:A. Determination of the first order rate constant, k.
YOUR VALUE
COMPUTER VALUE
Slope of the best straight line from the
plot of In[t-BuCl], versus time:
First order rate constant, k:
(state to 2 sig. figs.)
Calculated half-life, t/2, using your value
of the rate constant:
B. Calculation of the rate of reaction at selected times.
Calculate the rate of the reaction at each time indicated in the table. Express the rate
in units of M/sec. Show the calculation of the 1000 second values.
TIME (IN SECONDS)
[t-BuC1],
RATE,
00 0 0
000
000
C. In addition...
Attach
hand-drawn plot of In[t-BuCl], versus time to the Report Sheet. Also attach
unour
the computer-generated plot. Attach a separate sheet of paper showing:
1. the calculation of the slope and k from your hand-drawn graph;
2. the calculation of the first two (2) values of [t-BuCl], and;
3. the calculation of the half-life.
Be certain all values are stated to the correct number of significant figures and are presented
with correct units.
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