Room Temperature: 23.8 °C Pressure: 764 mmHg Time (s) Compounds Mean time (s) Trial 1 Trial 3 Trial 2 Water 25.6 30.3 27.5 27.8 Benzene 21.2 19.98 20.5 (1) Chloroform 9.78 12.3 10.2 (2) Methanol 22.1 19.76 20 (3)
Room Temperature: 23.8 °C Pressure: 764 mmHg Time (s) Compounds Mean time (s) Trial 1 Trial 3 Trial 2 Water 25.6 30.3 27.5 27.8 Benzene 21.2 19.98 20.5 (1) Chloroform 9.78 12.3 10.2 (2) Methanol 22.1 19.76 20 (3)
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Catalysis and Enzymatic Reactions
Catalysis is the kind of chemical reaction in which the rate (speed) of a reaction is enhanced by the catalyst which is not consumed during the process of reaction and afterward it is removed when the catalyst is not used to make up the impurity in the product. The enzymatic reaction is the reaction that is catalyzed via enzymes.
Lock And Key Model
The lock-and-key model is used to describe the catalytic enzyme activity, based on the interaction between enzyme and substrate. This model considers the lock as an enzyme and the key as a substrate to explain this model. The concept of how a unique distinct key only can have the access to open a particular lock resembles how the specific substrate can only fit into the particular active site of the enzyme. This is significant in understanding the intermolecular interaction between proteins and plays a vital role in drug interaction.
Question
100%
Viscosity of Liquids
Complete the following tables with the correct data needed for each number. Show all pertinent computations. Express your answers in 4 decimal places. Please keep your units consistent while calculating for the answers. Enclose in a box/highlight your final answers. thank you
kindly answer 1,2, and 3 only
Transcribed Image Text:DETERMINATION OF ABSOLUTE VISCOSITY USING OSTWALD VISCOMETER: A
group of students enrolled in a Physical Chemistry Laboratory class performed
an experiment on the determination of absolute viscosity using Ostwald
viscometer. The data gathered by the group are documented in the table below.
Solve for the unknown data #'s 1-9, and the 2 other questions.
Room Temperature: 23.8 °C
Pressure: 764 mmHg
Time (s)
Compounds
Mean time (s)
Trial 1
Trial 2
Trial 3
Water
25.6
30.3
27.5
27.8
Benzene
21.2
19.98
20.5
(1)
Chloroform
9.78
12.3
10.2
(2)
Methanol
22.1
19.76
20
(3)
Density (g/mL)
Mean density
(g/mL)
Compounds
Trial 1
Trial 2
Trial 3
Benzene
0.869
0.878
0.881
(4)
Chloroform
Methanol
1.491
1.484
1.495
(5)
0.800
0.779
0.797
(6)
Compounds
Mean 7 (cP)
Benzene
(7)
|Chloroform
(8)
Methanol
(9)
Table 2-30 Density (kg/m3) of Saturated Liquid Water from the Triple Point to the Critical Point
T,K
P, kg/m³
TABLE 2-305 Thermodynamic Properties of Water
Temperature
K
Pressure
MPa
Density
moldm
Volume
dm'/mol
Therm. cond.
mW/(m-K)
Viscosity
uPars
294
997.983
296
997.532
273.16
280
0.000612
0.000992
55.497
55.501
0.018019
561.04
574.04
592.73
610.28
626.05
639.71
1791.2
1433.7
0.018018
0.018038
0.018078
0.018136
0.018209
200
300
0.001920
55.440
1084.0
298
997.042
310
320
0.003537
0.006231
0.010546
55.315
55.139
54.919
853.84
693.54
577.02
300
996.513
302
995.948
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