Chemistry, 10.07.2019 02:40 ldsimms12

Calculate the χacetone and χcyclohexane in the vapor above the solution. p°acetone = 229.5 torr and p°cyclohexane = 97.6 torr.

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The completed structure of ${\text{C}}{{\text{H}}_{\text{3}}}{\text{SSC}}{{\text{H}}_{\text{3}}}$ is shown in the attached image.

Further explanation:

Lewis structure:

In covalent molecules, different atoms are bonded to each other and this bonding between these atoms is shown with help of diagrams known as Lewis structures, Lone pairs are also indicated by such structures. These are also known as Lewis dot diagrams, Lewis dot structures or electron dot diagrams.

Lewis structure of ${\mathbf{C}}{{\mathbf{H}}_{\mathbf{3}}}{\mathbf{SSC}}{{\mathbf{H}}_{\mathbf{3}}}$ (Refer to the structure in the attached image):

The total number of valence electrons of ${\text{C}}{{\text{H}}_{\text{3}}}{\text{SSC}}{{\text{H}}_{\text{3}}}$ is calculated as follows:

Total valence electrons = [(2) (Valence electrons of C) + (2) (Valence electrons of S) + (6) (Valence electrons of H)]

$\begin{aligned} {\text{Total valence electrons}}\left( {{\text{TVE}}} \right) &= \left[ {\left( {\text{2}} \right)\left( {\text{4}} \right) + \left( {\text{2}} \right)\left( {\text{6}} \right) + \left( 6 \right)\left( 1 \right)} \right] \\ & = 26 \\ \end{aligned}$

In ${\text{C}}{{\text{H}}_{\text{3}}}{\text{SSC}}{{\text{H}}_{\text{3}}}$ , the total number of valence electrons is 26. In this molecule, each carbon forms three single bonds with three discrete hydrogen atoms and one single bond with sulfur atoms. So 16 electrons are used up in formation of six C-H bonds and two C-S bonds. Each sulfur atom forms one bond with other sulfur atom so 2 electrons are used up in formation of one S-S bond. Out of 26 total electrons, 18 electrons are utilized in formation of bonds in ${\text{C}}{{\text{H}}_{\text{3}}}{\text{SSC}}{{\text{H}}_{\text{3}}}$ and eight electrons are left unutilized and act as four lone pairs. Since carbon forms four bonds and each hydrogen atom forms one bond, four lone pairs are present on both sulfur atoms.

Learn more:

Molecular shape around each of the central atoms in the amino acid glycine: Draw resonating structures of azide ion:

Answer details:

Grade: Senior School

Subject: Chemistry

Chapter: Molecular structure and chemical bonding

Keywords: Lewis structure, valence electrons, CH3SSCH3, 26, 18, lone pairs, carbon, sulfur, hydrogen, four lone pairs, 2, 16.

Calculate the χacetone and χcyclohexane in the vapor above the solution. p°acetone = 229.5 torr and

Answer from: Quest

explanation:

metals have excess of electrons whereas non-metals have deficiency of electrons. thus, in order to gain stability metals easily donate their electrons to the non-metals.

for example, electronic configuration of sodium is $1s^{2}2s^{2}2p^{6}3s^{1}$ and electronic configuration of phosphorous is $1s^{2}2s^{2}2p^{6}3s^{2}3p^{3}$ .

when a phosphorous atom and sodium atom combine together then sodium will donate is extra one electron to the phosphorous atom. as a result there will be formation of ionic bond between sodium and phosphorous.

the reaction will be as follows.

$3na + p \rightarrow na_{3}p$

there, are three sodium sodium atoms and each of them will donate its one extra electron to phosphorous atom. thus, the sub-shell of phosphorous gets completely filled.

thus, we can conclude that electrons are transferred from atoms of sodium to atoms of phosphorous. this transfer makes the sodium atoms donate one electron and the phosphorous atoms to gain one electron. as a result, the sodium and phosphorus atoms strongly attract each other.

Electrons are transferred from atoms of to atoms of this transfer makes the sodium atoms and the

Answer from: Quest

D. most models represent a real world object in a simpler way

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Calculate the χacetone and χcyclohexane in the vapor above the solution. p°acetone = 229.5 torr and...

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