Input interpretation
![hydrogen sulfide](../image_source/3f3f9761aa714366ef041b678aae1f31.png)
hydrogen sulfide
Chemical names and formulas
![formula | H_2S name | hydrogen sulfide alternate names | sulfane mass fractions | H (hydrogen) 5.92% | S (sulfur) 94.1%](../image_source/516f2a5d5bb6f072565329956df30373.png)
formula | H_2S name | hydrogen sulfide alternate names | sulfane mass fractions | H (hydrogen) 5.92% | S (sulfur) 94.1%
Lewis structure
![Draw the Lewis structure of hydrogen sulfide. Start by drawing the overall structure of the molecule: Count the total valence electrons of the hydrogen (n_H, val = 1) and sulfur (n_S, val = 6) atoms: 2 n_H, val + n_S, val = 8 Calculate the number of electrons needed to completely fill the valence shells for hydrogen (n_H, full = 2) and sulfur (n_S, full = 8): 2 n_H, full + n_S, full = 12 Subtracting these two numbers shows that 12 - 8 = 4 bonding electrons are needed. Each bond has two electrons, so the above diagram has all the necessary bonds. There are 2 bonds and hence 4 bonding electrons in the diagram. Lastly, fill in the remaining unbonded electrons on each atom. In total, there remain 8 - 4 = 4 electrons left to draw: Answer: | |](../image_source/95c3080882d6cfd09e3c9d4755385a1f.png)
Draw the Lewis structure of hydrogen sulfide. Start by drawing the overall structure of the molecule: Count the total valence electrons of the hydrogen (n_H, val = 1) and sulfur (n_S, val = 6) atoms: 2 n_H, val + n_S, val = 8 Calculate the number of electrons needed to completely fill the valence shells for hydrogen (n_H, full = 2) and sulfur (n_S, full = 8): 2 n_H, full + n_S, full = 12 Subtracting these two numbers shows that 12 - 8 = 4 bonding electrons are needed. Each bond has two electrons, so the above diagram has all the necessary bonds. There are 2 bonds and hence 4 bonding electrons in the diagram. Lastly, fill in the remaining unbonded electrons on each atom. In total, there remain 8 - 4 = 4 electrons left to draw: Answer: | |
3D structure
![3D structure](../image_source/6a199353de33039b533786c57b9fa3fd.png)
3D structure
Basic properties
![molar mass | 34.08 g/mol phase | gas (at STP) melting point | -85 °C boiling point | -60 °C density | 0.001393 g/cm^3 (at 25 °C) dielectric constant | 1.003](../image_source/01b9139dfcfbf5404c11f449382eb4b6.png)
molar mass | 34.08 g/mol phase | gas (at STP) melting point | -85 °C boiling point | -60 °C density | 0.001393 g/cm^3 (at 25 °C) dielectric constant | 1.003
Gas properties (at STP)
![density | 0.001393 g/cm^3 (at 25 °C) vapor density | 1.19 (relative to air) molar volume | 24460 cm^3/mol dynamic viscosity | 1.239×10^-5 Pa s (at 25 °C)](../image_source/6f34dad894185b14d3edac0585337c8f.png)
density | 0.001393 g/cm^3 (at 25 °C) vapor density | 1.19 (relative to air) molar volume | 24460 cm^3/mol dynamic viscosity | 1.239×10^-5 Pa s (at 25 °C)
Units
Thermodynamic properties
![specific heat capacity c_p | gas | 1.004 J/(g K) molar heat capacity c_p | gas | 34.2 J/(mol K) specific free energy of formation Δ_fG° | gas | -0.9802 kJ/g molar free energy of formation Δ_fG° | gas | -33.4 kJ/mol specific heat of formation Δ_fH° | gas | -0.6045 kJ/g molar heat of formation Δ_fH° | gas | -20.6 kJ/mol specific entropy S° | gas | 6.045 J/(g K) molar entropy S° | gas | 206 J/(mol K) molar heat of vaporization | 17.7 kJ/mol | specific heat of vaporization | 0.5194 kJ/g | molar heat of fusion | 2.38 kJ/mol | specific heat of fusion | 0.0698 kJ/g | thermal conductivity | 0.01373 W/(m K) | critical temperature | 373.1 K | critical pressure | 9 MPa | (at STP)](../image_source/83d66cc2a8f5cd43c009b108c2f45237.png)
specific heat capacity c_p | gas | 1.004 J/(g K) molar heat capacity c_p | gas | 34.2 J/(mol K) specific free energy of formation Δ_fG° | gas | -0.9802 kJ/g molar free energy of formation Δ_fG° | gas | -33.4 kJ/mol specific heat of formation Δ_fH° | gas | -0.6045 kJ/g molar heat of formation Δ_fH° | gas | -20.6 kJ/mol specific entropy S° | gas | 6.045 J/(g K) molar entropy S° | gas | 206 J/(mol K) molar heat of vaporization | 17.7 kJ/mol | specific heat of vaporization | 0.5194 kJ/g | molar heat of fusion | 2.38 kJ/mol | specific heat of fusion | 0.0698 kJ/g | thermal conductivity | 0.01373 W/(m K) | critical temperature | 373.1 K | critical pressure | 9 MPa | (at STP)
Phase diagram
![Phase diagram](../image_source/ec4c20180d4bfdd7fa721f1b5b2e36e3.png)
Phase diagram
Units
Chemical identifiers
![CAS number | 7783-06-4 Beilstein number | 3535004 PubChem CID number | 402 PubChem SID number | 24857784 SMILES identifier | S InChI identifier | InChI=1/H2S/h1H2 RTECS number | MX1225000 MDL number | MFCD00011444](../image_source/d1f91c4bcaf760f307a2a23a03781795.png)
CAS number | 7783-06-4 Beilstein number | 3535004 PubChem CID number | 402 PubChem SID number | 24857784 SMILES identifier | S InChI identifier | InChI=1/H2S/h1H2 RTECS number | MX1225000 MDL number | MFCD00011444
Toxicity properties
![short-term exposure limit | 21 mg/m^3](../image_source/938bcfdd538b9799cb70979d7a431e65.png)
short-term exposure limit | 21 mg/m^3
![long-term exposure limit | 14 mg/m^3 (over 8 hours)](../image_source/02427a5ac2bb8bf0546662e589f2b60a.png)
long-term exposure limit | 14 mg/m^3 (over 8 hours)