Lewis structure for HC 2 O 4 − and C 2 O 4 2 − has to be drawn. Concept Introduction: Lewis dot symbol is used to represent the valence electrons of an atom or ion using dots surrounding the element symbol along four sides of the element symbol without maintaining exact order for the placement of dots. In Lewis dot symbol representation, the symbol of element is surrounded by "dots" indicating the number of valence electrons available for the element. The dots can be placed one at a time on all the four sides, further electron can be placed by pairing up with the first placed dots. According to the number of electrons added or removed, charge must be placed on the Lewis dot symbol for cations and anions. The valence electron is the number of electrons present in the outermost shell of the atom. The number of valence electrons will be same for the same group elements which are represented by Lewis dot symbol. To draw: The Lewis structure for the HC 2 O 4 − and C 2 O 4 2 − .
Lewis structure for HC 2 O 4 − and C 2 O 4 2 − has to be drawn. Concept Introduction: Lewis dot symbol is used to represent the valence electrons of an atom or ion using dots surrounding the element symbol along four sides of the element symbol without maintaining exact order for the placement of dots. In Lewis dot symbol representation, the symbol of element is surrounded by "dots" indicating the number of valence electrons available for the element. The dots can be placed one at a time on all the four sides, further electron can be placed by pairing up with the first placed dots. According to the number of electrons added or removed, charge must be placed on the Lewis dot symbol for cations and anions. The valence electron is the number of electrons present in the outermost shell of the atom. The number of valence electrons will be same for the same group elements which are represented by Lewis dot symbol. To draw: The Lewis structure for the HC 2 O 4 − and C 2 O 4 2 − .
Solution Summary: The author explains that Lewis dot symbol is used to represent the valence electrons of an atom or ion using dots surrounding the element symbol.
Interpretation: Lewis structure for HC2O4− and C2O42− has to be drawn.
Concept Introduction: Lewis dot symbol is used to represent the valence electrons of an atom or ion using dots surrounding the element symbol along four sides of the element symbol without maintaining exact order for the placement of dots.
In Lewis dot symbol representation, the symbol of element is surrounded by "dots" indicating the number of valence electrons available for the element. The dots can be placed one at a time on all the four sides, further electron can be placed by pairing up with the first placed dots. According to the number of electrons added or removed, charge must be placed on the Lewis dot symbol for cations and anions.
The valence electron is the number of electrons present in the outermost shell of the atom. The number of valence electrons will be same for the same group elements which are represented by Lewis dot symbol.
To draw: The Lewis structure for the HC2O4− and C2O42−.
(b)
Interpretation Introduction
Concept Introduction: Bronsted's definition is based on the chemical reaction that occurs when both acids and bases are added with each other. In Bronsted's theory acid donates proton, while base accepts proton from acid resulting in the formation of water.
Example: Consider the following reaction.
HCl+NH3→NH4++Cl-
Hydrogen chloride donates a proton, and hence it is a Bronsted acid. Ammonia accepts a proton, and hence it is a Bronsted base.
When Bronsted base accepts a proton the protonated species is known as conjugate acid and when Bronsted acid loses a proton the deprotonated species is known as conjugate base. The conjugated acid-base pair is present in opposite side of the reaction. In this the base has one proton less than the acid.
To identify: The four species to be identified which can act as acid, base or both.
Assign this HSQC Spectrum ( please editing clearly on the image)
(a
4 shows scanning electron microscope (SEM) images of extruded
actions of packing bed for two capillary columns of different diameters,
al 750 (bottom image) and b) 30-μm-i.d. Both columns are packed with the
same stationary phase, spherical particles with 1-um diameter.
A) When the columns were prepared, the figure shows that the column with
the larger diameter has more packing irregularities. Explain this observation.
B) Predict what affect this should have on band broadening and discuss your
prediction using the van Deemter terms.
C) Does this figure support your explanations in application question 33?
Explain why or why not and make any changes in your answers in light of
this figure.
Figure 4 SEM images of
sections of packed columns
for a) 750 and b) 30-um-i.d.
capillary columns.³
fcrip
= ↓ bandwidth Il temp
32. What impact (increase, decrease, or no change) does each of the following conditions have on the individual
components of the van Deemter equation and consequently, band broadening?
Increase temperature
Longer column
Using a gas mobile phase
instead of liquid
Smaller particle stationary phase
Multiple Paths
Diffusion
Mass Transfer
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.