Kindly answer the following with proper sig figs and check the data below. Looking for:Mass of solute? Mass of solvent?Molality of the solution? Molar mass of the solute?% error of the MM of unknown solute?Thank you! Time (sec)0153040545046548049551052554034536037539042043512013515016518021022524025527028530031533045607590105195CoTemperature (°C)100.098.0mass of container+sample,gmass of container, gUnknown Solutemass of container+sample,gmass of container, gLauric acidBenzophenonePara-dichlorobenzeneStearic acid75.075.075.075.075.075.076.076.076.076.093.088.085.082.080.078.077.076.076.076.076.076.076.076.076.075.575.575.575.575.575.575.575.575.575.0Appearance.LiquidLiquidLiquidLiquidLiquidLiquidLiquid43.849.0⁰53.1b69.4LiquidLiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidColld-Liquidolid-Liquidolid-Liquidolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidTable 3b.4. Data on the determination of the molecular mass of the unknown solute.ParameterUnknown Solvent regadTable 3b.5. Literature values for the identification of the unknown B.CompoundMelting Point", "C10092-Time (sec)555570585600615630645660675690705720735750765780795810825840855870885900Temperature (°C)74.574.574.574.574.574.074.074.073.573.573.573.573.573.571.069.065.063.060.0tulog nwordinu!58.054.051.049.045.0Value20.0518.031.531.32b3.9AppearanceSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolid-LiquidSolidSolidSolidSolidSolidSolidSolidSolidSolidSolidO.ISLFreezing point depression constant (kr), °C-kg-mol.¹0.880.330.209.8⁰7.10⁰4.27 o nousV18200 E.de sidstREGENaphthalene3.Table 30.6. Literature values for the identification of the unknown A.CompoundChemical FormulaSodium chlorideBenzeneBenzoic acidDiphenylaminetto80.2where:NaClC6H6C₂H₂O₂C₁₂H₁NF711 ==Molar mass, g'mol 158.4478.108hogfrom the freezinT-Tky122.118169.2086.9⁰T%= freezing point of the pure solvent (use the experimental value)Tr= freezing point of solutionk = freezing point depression constant of the solventm = molality of the solutionMelting Point", "C8015.5122.353on in3b-3) Table 3b.2. Determination of the melting point range, experimental melting point and possible identity of unknowns A and B.Unknown A120.5 °C -123.0 °CUnknown B78.0 °C- 81.0 °C79.5°CNapthalene0.9%ParametersMelting Point RangeExperimental Melting Point121.8 °CBenzoic acid0.4%Possible IdentityPercent Error, % (Melting Point)Table 3b.3. Data on the determination of the molecular mass of the unknown coluto

Melting point: The melting point of a substance is the temperature at which it changes state from…

Answered: Mass of solute? Mass of solvent?…

Mass of solute? Mass of solvent? Molality of the solution? Molar mass of the solute? % error of the MM of unknown solute? Thank you!

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter4: Least-squares And Calibration Methods

Section: Chapter Questions

Problem 1P

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

Kindly answer the following with proper sig figs and check the data below. Looking for: Mass of solute? Mass of solvent? Molality of the solution? Molar mass of the solute? % error of the MM of unknown solute? Thank you!

Time (sec)
0
15
30
405
450
465
480
495
510
525
540
345
360
375
390
420
435
120
135
150
165
180
210
225
240
255
270
285
300
315
330
45
60
75
90
105
195
Co
Temperature (°C)
100.0
98.0
mass of container+sample,g
mass of container, g
Unknown Solute
mass of container+sample,g
mass of container, g
Lauric acid
Benzophenone
Para-dichlorobenzene
Stearic acid
75.0
75.0
75.0
75.0
75.0
75.0
76.0
76.0
76.0
76.0
93.0
88.0
85.0
82.0
80.0
78.0
77.0
76.0
76.0
76.0
76.0
76.0
76.0
76.0
76.0
75.5
75.5
75.5
75.5
75.5
75.5
75.5
75.5
75.5
75.0
Appearance.
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
43.8
49.0⁰
53.1b
69.4
Liquid
Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Colld-Liquid
olid-Liquid
olid-Liquid
olid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Table 3b.4. Data on the determination of the molecular mass of the unknown solute.
Parameter
Unknown Solvent regad
Table 3b.5. Literature values for the identification of the unknown B.
Compound
Melting Point", "C
10092-
Time (sec)
555
570
585
600
615
630
645
660
675
690
705
720
735
750
765
780
795
810
825
840
855
870
885
900
Temperature (°C)
74.5
74.5
74.5
74.5
74.5
74.0
74.0
74.0
73.5
73.5
73.5
73.5
73.5
73.5
71.0
69.0
65.0
63.0
60.0
tulog nwordinu!
58.0
54.0
51.0
49.0
45.0
Value
20.05
18.03
1.53
1.32
b3.9
Appearance
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid-Liquid
Solid
Solid
Solid
Solid
Solid
Solid
Solid
Solid
Solid
Solid
O.ISL
Freezing point depression constant (kr), °C-kg-mol.¹
0.88
0.33
0.20
9.8⁰
7.10⁰
4.27 o nousV18200 E.de sidst
REGE
Naphthalene
3.
Table 30.6. Literature values for the identification of the unknown A.
Compound
Chemical Formula
Sodium chloride
Benzene
Benzoic acid
Diphenylaminetto
80.2
where:
NaCl
C6H6
C₂H₂O₂
C₁₂H₁N
F
711 ==
Molar mass, g'mol 1
58.44
78.108
hog
from the freezin
T-T
ky
122.118
169.208
6.9⁰
T%= freezing point of the pure solvent (use the experimental value)
Tr= freezing point of solution
k = freezing point depression constant of the solvent
m = molality of the solution
Melting Point", "C
801
5.5
122.3
53
on in
3b-3)

Table 3b.2. Determination of the melting point range, experimental melting point and possible identity of unknowns A and B.
Unknown A
120.5 °C -123.0 °C
Unknown B
78.0 °C- 81.0 °C
79.5°C
Napthalene
0.9%
Parameters
Melting Point Range
Experimental Melting Point
121.8 °C
Benzoic acid
0.4%
Possible Identity
Percent Error, % (Melting Point)
Table 3b.3. Data on the determination of the molecular mass of the unknown coluto

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