(a) Interpretation: The compound with higher molar solubility in the given pair of compound needs to be determined. NH 4 Cl or NaCl at 40°C Concept introduction: Ionic compounds are soluble in polar solvents as “Like dissolves like.” Therefore, polar solvents like water act as a good solvent for ionic compounds. The solubility curve can be used to determine the solubility in water at different temperature. Some of solutes / compounds are more soluble in water whereas some are quite less. The solubility curve indicates the relation in the solubility of different ionic compounds in water at different temperatures.
(a) Interpretation: The compound with higher molar solubility in the given pair of compound needs to be determined. NH 4 Cl or NaCl at 40°C Concept introduction: Ionic compounds are soluble in polar solvents as “Like dissolves like.” Therefore, polar solvents like water act as a good solvent for ionic compounds. The solubility curve can be used to determine the solubility in water at different temperature. Some of solutes / compounds are more soluble in water whereas some are quite less. The solubility curve indicates the relation in the solubility of different ionic compounds in water at different temperatures.
Solution Summary: The author explains that polar solvents like water act as a good solvent for ionic compounds.
The compound with higher molar solubility in the given pair of compound needs to be determined.
NH4Cl or NaCl at 40°C
Concept introduction:
Ionic compounds are soluble in polar solvents as “Like dissolves like.” Therefore, polar solvents like water act as a good solvent for ionic compounds.
The solubility curve can be used to determine the solubility in water at different temperature. Some of solutes / compounds are more soluble in water whereas some are quite less. The solubility curve indicates the relation in the solubility of different ionic compounds in water at different temperatures.
Interpretation Introduction
(b)
Interpretation:
The compound with higher molar solubility in the given pair of compound needs to be determined.
CuSO4 and or K2SO4 at 20°C
Concept introduction:
Ionic compounds are soluble in polar solvents as “Like dissolves like.” Therefore, polar solvents like water act as a good solvent for ionic compounds.
The solubility curve can be used to determine the solubility in water at a different temperature. Some of the solutes/compounds are more soluble in water whereas some are quite less. The solubility curve indicates the relation in the solubility of different ionic compounds in water at different temperatures.
с.
d.
СнЗ
Сизена=-4=4
Cla
H
Eget3
над
f.
e.
H-C=C-CH3 + 285 →
H-C=C-CH3+2не
H-C=C-CH3 + Nanta»
g+ CH₂ CH₂-G = G-C₁₂-G=CH₂ + 2HI→
H H
H
AL
The IR (infrared) spectra of two pure compounds (0.010 M compound A in solvent and 0.010 M compound B in solvent) are
given. The pathlength of the cell is 1.00 cm. The y-axis in the spectra is transmittance rather than absorption, so that the
wavenumbers at which there is a dip in the curve correspond to absorption peaks.
A mixture of A and B in unknown concentrations gave a percent transmittance of 49.8% at 2976 cm¹ and 44.9% at 3030 cm-1
Wavenumber
0.010 M A
0.010 M B
Unknown
3030 cm-1
35.0%
93.0%
44.9%
2976 cm-¹
76.0%
42.0%
49.8%
What are the concentrations of A and B in the unknown sample?
Transmittance (%)
100
90
80
70
60
50
40
2976 cm-1
30
3030 cm-1
20
Pure A
10
Pure B
0
3040
2990
Wavenumber (cm-1)
2940
2890
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